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Pereira EBC, Carvalho CN, Carvalho Neto APM, de Omena ACS, Magalhães PKA, Cavalcanti MGS, Ferreira Júnior GC, Costa JG, de Omena BC, Silva AC, Santos JMS, Rocha TJM. Microorganisms causing vulvovaginitis: analysis of 1,688 cervicovaginal cytology. BRAZ J BIOL 2024; 83:e275237. [PMID: 38422261 DOI: 10.1590/1519-6984.275237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/22/2023] [Indexed: 03/02/2024] Open
Affiliation(s)
| | - C N Carvalho
- Centro Universitário - CESMAC, Maceió, AL, Brasil
| | | | | | | | | | - G C Ferreira Júnior
- Instituto Federal do Acre - IFAC, Mestrado Profissional em Propriedade Intelectual e Transferência de Tecnologia para a Inovação - ProfNIT, Rio Branco, AC, Brasil
| | - J G Costa
- Empresa Brasileira de Pesquisa Agropecuária - EMBRAPA, Centro de Pesquisa Agropecuária dos Tabuleiros Costeiros, Campus Delza Gitai, Rio Largo, AL, Brasil
| | - B C de Omena
- Secretaria de Estado de Saúde de Alagoas - SESAU, Maceió, AL, Brasil
| | - A C Silva
- Centro Universitário - CESMAC, Maceió, AL, Brasil
| | - J M S Santos
- Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL, Maceió, AL, Brasil
| | - T J M Rocha
- Centro Universitário - CESMAC, Maceió, AL, Brasil
- Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL, Maceió, AL, Brasil
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Correia AC, Moreira JN, Sousa Lobo JM, Silva AC. Design of experiment (DoE) as a quality by design (QbD) tool to optimise formulations of lipid nanoparticles for nose-to-brain drug delivery. Expert Opin Drug Deliv 2023; 20:1731-1748. [PMID: 37905547 DOI: 10.1080/17425247.2023.2274902] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/20/2023] [Indexed: 11/02/2023]
Abstract
INTRODUCTION The nose-to-brain route has been widely investigated to improve drug targeting to the central nervous system (CNS), where lipid nanoparticles (solid lipid nanoparticles - SLN and nanostructured lipid carriers - NLC) seem promising, although they should meet specific criteria of particle size (PS) <200 nm, polydispersity index (PDI) <0.3, zeta potential (ZP) ~|20| mV and encapsulation efficiency (EE) >80%. To optimize SLN and NLC formulations, design of experiment (DoE) has been recommended as a quality by design (QbD) tool. AREAS COVERED This review presents recently published work on the optimization of SLN and NLC formulations for nose-to-brain drug delivery. The impact of different factors (or independent variables) on responses (or dependent variables) is critically analyzed. EXPERT OPINION Different DoEs have been used to optimize SLN and NLC formulations for nose-brain drug delivery, and the independent variables lipid and surfactant concentration and sonication time had the greatest impact on the dependent variables PS, EE, and PDI. Exploring different DoE approaches is important to gain a deeper understanding of the factors that affect successful optimization of SLN and NLC and to facilitate future work improving machine learning techniques.
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Affiliation(s)
- A C Correia
- Faculty of Pharmacy, University of Porto, UCIBIO, REQUIMTE, Porto, Portugal
- Associate Laboratory i4HB Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - J N Moreira
- CNC - Center for Neuroscience and Cell Biology, Center for Innovative Biomedicine and Biotechnology (CIBB), Faculty of Medicine (Pólo I), University of Coimbra, Coimbra, Portugal
- Faculty of Pharmacy, Univ Coimbra - University of Coimbra, CIBB, Pólo das Ciências da Saúde, Azinhaga de, Santa Comba, Coimbra, Portugal
| | - J M Sousa Lobo
- Faculty of Pharmacy, University of Porto, UCIBIO, REQUIMTE, Porto, Portugal
- Associate Laboratory i4HB Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - A C Silva
- Faculty of Pharmacy, University of Porto, UCIBIO, REQUIMTE, Porto, Portugal
- Associate Laboratory i4HB Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal
- FP-I3ID (Instituto de Investigação, Inovação e Desenvolvimento), FP-BHS (Biomedical and Health Sciences Research Unit), Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
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Silva AC, Almeida VS, Veras PM, Carnaúba FRN, Filho JE, Garcia MAC, Fonseca DS. Effect of extracorporeal shock wave therapy on pain and function in patients with knee osteoarthritis: a systematic review with meta-analysis and grade recommendations. Clin Rehabil 2022; 37:760-773. [PMID: 36524275 DOI: 10.1177/02692155221146086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Objective To investigate extracorporeal shock wave therapy effect on knee osteoarthritis compared to a sham or kinesiotherapy by a systematic review and meta-analysis of randomized clinical trials. Data Sources The search was performed in: Cochrane Library, PubMed, PEDro, Web of Science, EMBASE, Scopus, LILACS, and Scielo. Review methods We performed the online search until October, 2022. The following terms were used (Osteoarthritis) AND (“knee joint”) AND (“Extracorporeal Shockwave Therapy”). Eligibility criteria: (1) randomized clinical trials; (2) effects comparison of shockwave therapy to a sham or kinesiotherapy in individuals with knee osteoarthritis; (3) pain and physical function as outcome variables. Risk of bias assessed using the PEDro scale. PROSPERO registration (CRD42021235597). Results We identified 4217 studies, and 12 were included in the qualitative synthesis and the meta-analysis, totaling 403 individuals submitted to the intervention and 331 control individuals. Compared to sham, shockwave was favored in short-term for the function outcome (SMD = −1.93; 95%CI: [−2.77; −1.09]; I² = 83%; P < 0.01). For the pain outcome, the shockwave was favored in the short (MD = −2.05; 95%CI: [−2.59; −1.51]; I² = 84%; P < 0.01), medium (MD = −3.46; 95%CI: [−4.03; −2.89]; I² = 0%; P < 0.01) and long-term (MD = −2.01; 95%CI: [−3.36; −0.65]; I² = 98%; P < 0.01). The association with kinesiotherapy was favored in the short term for the function outcome (SMD = -1.88; 95%CI: [−2.98; −0.78]; I² = 94%; P < 0.01) and favored for the pain outcome in the short (MD = −1.44; 95%CI: [−1.81; −1.07]; I² = 37%; P = 0.14), medium (MD = −1,31; 95%CI: [−1.76; −0,85]; I² = 0%; P = 0.41), and long terms (MD = −1.63; 95%CI: [−1.73; −1.52]; I² = 0%; P = 0.43). Conclusion Shockwave therapy may improve functionality in patients with knee osteoarthritis in the short term and pain in all follow-up moments, compared with sham. When associated to kinesiotherapy, it may improve function in the short term and pain in all follow-up time points, although improvement in pain may not be clinically significant.
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Affiliation(s)
- AC Silva
- Programa de Graduação em Fisioterapia, Faculdade de Fisioterapia, Universidade Federal de Juiz de Fora, Juiz de Fora, Brasil
| | - VS Almeida
- Programa de Graduação em Fisioterapia, Faculdade de Fisioterapia, Universidade Federal de Juiz de Fora, Juiz de Fora, Brasil
| | - PM Veras
- Hospital Universitário, Universidade Federal de Juiz de Fora, Juiz de Fora, Brasil
| | - FRN Carnaúba
- Departamento de Fisioterapia, Instituto de Ciências da Vida, Universidade Federal de Juiz de Fora, Governador Valadares, Brasil
| | - JE Filho
- Programa de Pós-graduação em Educação Física, Faculdade de Educação Física, Universidade Federal de Juiz de Fora, Juiz de Fora, Brasil
| | - MAC Garcia
- Departamento de Fisiologia, Instituto de Ciências Biológicas, Programa de Pós-graduação em Ciências da Reabilitação e Desempenho Físico Funcional, Universidade Federal de Juiz de Fora, Juiz de Fora, Brasil
| | - DS Fonseca
- Programa de Pós-graduação em Ciências da Reabilitação e Desempenho Físico Funcional, Faculdade de Fisioterapia, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, Brasil
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Correia AC, Monteiro AR, Silva R, Moreira JN, Sousa Lobo JM, Silva AC. Lipid nanoparticles strategies to modify pharmacokinetics of central nervous system targeting drugs: Crossing or circumventing the blood-brain barrier (BBB) to manage neurological disorders. Adv Drug Deliv Rev 2022; 189:114485. [PMID: 35970274 DOI: 10.1016/j.addr.2022.114485] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/30/2022] [Accepted: 08/03/2022] [Indexed: 01/24/2023]
Abstract
The main limitation to the success of central nervous system (CNS) therapies lies in the difficulty for drugs to cross the blood-brain barrier (BBB) and reach the brain. Regarding its structure and enzymatic complexity, crossing the BBB is a challenge, although several alternatives have been identified. For instance, the use of drugs encapsulated in lipid nanoparticles has been described as one of the most efficient approaches to bypass the BBB, as they allow the passage of drugs through this barrier, improving brain bioavailability. In particular, solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) have been a focus of research related to drug delivery to the brain. These systems provide protection of lipophilic drugs, improved delivery and bioavailability, having a major impact on treatments outcomes. In addition, the use of lipid nanoparticles administered via routes that transport drugs directly into the brain seems a promising solution to avoid the difficulties in crossing the BBB. For instance, the nose-to-brain route has gained considerable interest, as it has shown efficacy in 3D human nasal models and in animal models. This review addresses the state of the art on the use of lipid nanoparticles to modify the pharmacokinetics of drugs employed in the management of neurological disorders. A description of the structural components of the BBB, the role of the neurovascular unit and limitations for drugs to entry into the CNS is first addressed, along with the developments to increase drug delivery to the brain, with a special focus on lipid nanoparticles. In addition, the obstacle of BBB complexity in the creation of new effective drugs for the treatment of the most prevalent neurological disorders is also addressed. Finally, the proposed strategies for lipid nanoparticles to reach the CNS, crossing or circumventing the BBB, are described. Although promising results have been reported, especially with the nose-to-brain route, they are still ongoing to assess its real efficacy in vivo in the management of neurological disorders.
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Affiliation(s)
- A C Correia
- UCIBIO, REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Portugal
| | - A R Monteiro
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - R Silva
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal.
| | - J N Moreira
- CNC - Center for Neuroscience and Cell Biology, Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Faculty of Medicine (Pólo I), Coimbra, Portugal; Univ Coimbra - University of Coimbra, CIBB, Faculty of Pharmacy, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - J M Sousa Lobo
- UCIBIO, REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Portugal
| | - A C Silva
- UCIBIO, REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Portugal; FP-I3ID (Instituto de Investigação, Inovação e Desenvolvimento), FP-BHS (Biomedical and Health Sciences Research Unit), Faculty of Health Sciences, University Fernando Pessoa, 4249 004 Porto, Portugal.
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Barbosa FM, Brunieira P, Longui CA, Kochi C, Sá NC, Silva AC, Brighenti LMV, Ennes DB, Pizza M, Kobashikawa KT. DIAGNÓSTICO OCASIONAL DE LEUCEMIA LINFOIDE AGUDA EM PACIENTE COM DOENÇA DE GRAVES: UM RELATO DE CASO. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Barbosa FM, Luporini SM, Hegg ICO, Sá NC, Silva AC, Nunes GC, Brighenti LMV, Bruniera P, Enner DB, Borsato ML. HEMOFILIA A GRAVE COM DIAGNÓSTICO TARDIO: RELATO DE CASO. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Duarte RG, Akil F, Amorim FS, Aguiar LC, Silva AC, Evangelista PJO. A INFLUÊNCIA DA FAIXA ETÁRIA DOS PACIENTES COM NECESSIDADE TRANSFUSIONAL NA CAPTAÇÃO DE DOADORES DE SANGUE TIPO REPOSIÇÃO. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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López R, Antelo J, Silva AC, Bento F, Fiol S. Factors that affect physicochemical and acid-base properties of compost and vermicompost and its potential use as a soil amendment. J Environ Manage 2021; 300:113702. [PMID: 34517230 DOI: 10.1016/j.jenvman.2021.113702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 08/14/2021] [Accepted: 09/05/2021] [Indexed: 06/13/2023]
Abstract
Composting and vermicomposting have attracted attention in relation to both waste management and the potential to produce organic amendments that could improve soil quality. The main differences between compost depend on the feedstock, the production process, and the degree of maturity. In the present study, samples of compost of different origin (food and green waste, livestock waste, algae waste, urban waste or sewage sludge) or subjected to different composting methods (traditional or using earthworms) were collected for analysis. Additionally, samples collected at various stages of the composting process were compared (raw material, 15 and 30 days of composting, and final compost). Different analysis and techniques were used to establish the chemical composition, physicochemical and acid-base properties of compost samples and the organic matter extracts. The correlations obtained (between the abundance of acid groups in different extracts of the compost or between the cation exchange capacity and the C/N atomic ratio) would allow for predicting the compost behaviour based on certain characteristics, and a reduction in the number of parameters determined experimentally, thus facilitating comparisons between different compost. In addition, the potential value of the compost as amendment was tested with a Haplic Cambisol from a mining area. The application of compost increased the pH, the organic matter and nutrient content, and promoted seed germination and root growth.
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Affiliation(s)
- R López
- CRETUS, Department of Physical Chemistry, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| | - J Antelo
- CRETUS, Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - A C Silva
- CRETUS, Department of Physical Chemistry, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain; Department of Chemistry, Center of Chemistry, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - F Bento
- Department of Chemistry, Center of Chemistry, University of Minho, Campus Gualtar, 4710-057, Braga, Portugal
| | - S Fiol
- CRETUS, Department of Physical Chemistry, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain
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Cardoso RA, Silva AC, Vieira MJ, Oliveira SG, Silva GRM, Yoshisaki MM, Bonifacio SL, Rocha V, Junior AM, Dinardo CL. DIFICULDADES NA DETECÇÃO DE ANTICORPOS CONTRA ANTÍGENOS COMPOSTOS NA ROTINA PRÉ-TRANSFUSIONAL. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Silva AC, Cardoso RA, Bonifácio SL, Campos EMB, Giorno CD, Tokuho R, Yoshisaki MM, Rocha V, Mendrone-Junior A, Dinardo CL. REAVALIANDO “ANTIGOS” CONCEITOS UTILIZANDO AS METODOLOGIAS IMUNO-HEMATOLÓGICAS ATUAIS. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Cardoso RA, Silva AC, Bonifácio SL, Carvalho FO, Santos LMD, Santos JAD, Junior RAD, Rocha V, Mendrone-Junior A, Dinardo CL. PACIENTES ONCOLÓGICOS E AS COMPLICAÇÕES NOS TESTES IMUNO-HEMATOLÓGICOS. Hematol Transfus Cell Ther 2021. [DOI: 10.1016/j.htct.2021.10.550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Costa CP, Cunha S, Moreira JN, Silva R, Gil-Martins E, Silva V, Azevedo L, Peixoto AF, Sousa Lobo JM, Silva AC. Quality by design (QbD) optimization of diazepam-loaded nanostructured lipid carriers (NLC) for nose-to-brain delivery: Toxicological effect of surface charge on human neuronal cells. Int J Pharm 2021; 607:120933. [PMID: 34324988 DOI: 10.1016/j.ijpharm.2021.120933] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/10/2021] [Accepted: 07/21/2021] [Indexed: 12/24/2022]
Abstract
Diazepam is commonly used in the management of epileptic seizures, although it has limitations that can be overcome by using formulations that are easier to administer and capable of directing the drug to the brain. In this field, it has been reported that the use of nanostructured lipid carriers (NLC) via intranasal (or via nose-to-brain) promotes the targeting of drugs to the brain, improving the effectiveness of therapy. The aim of this work was to optimize two diazepam-loaded NLC formulations for nose-to-brain delivery, one with positive surface charge and one with negative surface charge. The quality by design (QbD) approach was used to design the experiments, where the quality target product profile (QTPP), the risk assessment and the critical quality attributes (CQAs) were defined to ensure safety, efficacy and quality of the final formulations. The experiments started with the optimization of critical material attributes (CMAs), related to the ratios of lipids and emulsifiers, followed by the selection of critical process parameters (CPPs), related to the production methods of the diazepam-loaded NLC formulation (ultrasound technique and high-pressure homogenization - HPH). Afterwards, the positive surface charge of the diazepam-loaded NLC was optimized. Finally, the biocompatibility with human neuronal cells of the formulation with a negative surface charge and of the formulation with a positive surface charge was evaluated. The results of the optimization of the CMAs showed that the ratios of lipids and emulsifiers more adequate were 6.7:2.9 and 4.2:0.3 (% w,w), respectively. Regarding the CPPs, HPH was considered the most suitable production method, resulting in an optimized diazepam-loaded NLC formulation (F1C15) with negative surface charge, showing particle size of 69.59 ± 0.22 nm, polydispersity index (PDI) of 0.19 ± 0.00, zeta potential (ZP) of -23.50 ± 0.24 mV and encapsulation efficiency (EE) of 96.60 ± 0.03 %. The optimized diazepam-loaded NLC formulation (F2A8) with positive surface charge had particle size of 124.40 ± 0.84 nm, PDI of 0.17 ± 0.01, ZP of 32.60 ± 1.13 mV and EE of 95.76 ± 0.24 %. In addition, the incorporation of diazepam in NLC resulted in a sustained release of the drug. No significant changes in particle size, PDI, ZP and EE were observed for the formulation F1C15, after 3 months of storage, whereas for formulation F2A8, particle size increased significantly. Biocompatibility studies showed that the formulation F2A8 was more cytotoxic than the formulation F1C15. Thereby, we conclude that the formulation F1C15 is more suitable for targeting the brain, when compared with the formulation F2A8. From the results of these studies, it can be confirmed that the QbD approach is an adequate and central tool to optimize NLC formulations.
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Affiliation(s)
- C P Costa
- UCIBIO/REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - S Cunha
- UCIBIO/REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - J N Moreira
- CNC - Center for Neuroscience and Cell Biology, Center for Innovative Biomedicine and Biotechnology (CIBB), Faculty of Medicine (Pólo I), University of Coimbra, 3004-531 Coimbra, Portugal; UC - University of Coimbra, CIBB, Faculty of Pharmacy, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - R Silva
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - E Gil-Martins
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - V Silva
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - L Azevedo
- UCIBIO/REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - A F Peixoto
- LAQV/REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - J M Sousa Lobo
- UCIBIO/REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - A C Silva
- UCIBIO/REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; FP-ENAS (UFP Energy, Environment and Health Research Unit), CEBIMED (Biomedical Research Centre), Faculty of Health Sciences, University Fernando Pessoa, 4249-004 Porto, Portugal.
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Basso MA, Frey S, Guerriero KA, Jarraya B, Kastner S, Koyano KW, Leopold DA, Murphy K, Poirier C, Pope W, Silva AC, Tansey G, Uhrig L. Using non-invasive neuroimaging to enhance the care, well-being and experimental outcomes of laboratory non-human primates (monkeys). Neuroimage 2020; 228:117667. [PMID: 33359353 PMCID: PMC8005297 DOI: 10.1016/j.neuroimage.2020.117667] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 02/09/2023] Open
Abstract
Over the past 10-20 years, neuroscience witnessed an explosion in the use of non-invasive imaging methods, particularly magnetic resonance imaging (MRI), to study brain structure and function. Simultaneously, with access to MRI in many research institutions, MRI has become an indispensable tool for researchers and veterinarians to guide improvements in surgical procedures and implants and thus, experimental as well as clinical outcomes, given that access to MRI also allows for improved diagnosis and monitoring for brain disease. As part of the PRIMEatE Data Exchange, we gathered expert scientists, veterinarians, and clinicians who treat humans, to provide an overview of the use of non-invasive imaging tools, primarily MRI, to enhance experimental and welfare outcomes for laboratory non-human primates engaged in neuroscientific experiments. We aimed to provide guidance for other researchers, scientists and veterinarians in the use of this powerful imaging technology as well as to foster a larger conversation and community of scientists and veterinarians with a shared goal of improving the well-being and experimental outcomes for laboratory animals.
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Affiliation(s)
- M A Basso
- Fuster Laboratory of Cognitive Neuroscience, Department of Psychiatry and Biobehavioral Sciences UCLA Los Angeles CA 90095 USA
| | - S Frey
- Rogue Research, Inc. Montreal, QC, Canada
| | - K A Guerriero
- Washington National Primate Research Center University of Washington Seattle, WA USA
| | - B Jarraya
- Cognitive Neuroimaging Unit, INSERM, CEA, NeuroSpin center, 91191 Gif/Yvette, France; Université Paris-Saclay, UVSQ, Foch hospital, Paris, France
| | - S Kastner
- Princeton Neuroscience Institute & Department of Psychology Princeton University Princeton, NJ USA
| | - K W Koyano
- National Institute of Mental Health NIH Bethesda MD 20892 USA
| | - D A Leopold
- National Institute of Mental Health NIH Bethesda MD 20892 USA
| | - K Murphy
- Biosciences Institute and Centre for Behaviour and Evolution, Faculty of Medical Sciences Newcastle University Newcastle upon Tyne NE2 4HH United Kingdom UK
| | - C Poirier
- Biosciences Institute and Centre for Behaviour and Evolution, Faculty of Medical Sciences Newcastle University Newcastle upon Tyne NE2 4HH United Kingdom UK
| | - W Pope
- Department of Radiology UCLA Los Angeles, CA 90095 USA
| | - A C Silva
- Department of Neurobiology University of Pittsburgh, Pittsburgh PA 15261 USA
| | - G Tansey
- National Eye Institute NIH Bethesda MD 20892 USA
| | - L Uhrig
- Cognitive Neuroimaging Unit, INSERM, CEA, NeuroSpin center, 91191 Gif/Yvette, France
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Correia A, Costa CP, Silva V, Silva R, Lobo JMS, Silva AC. Pessaries containing nanostructured lipid carriers (NLC) for prolonged vaginal delivery of progesterone. Eur J Pharm Sci 2020; 153:105475. [PMID: 32711115 DOI: 10.1016/j.ejps.2020.105475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 07/01/2020] [Accepted: 07/20/2020] [Indexed: 11/25/2022]
Abstract
Progesterone (PRG) plays a crucial role in the female reproductive system, being the vaginal route the most adequate for its administration, as this drug has an extensive hepatic first pass effect. Nonetheless, vaginal PRG dosage forms originate immediate drug release and requires repeated administrations, which is unpleasant. Thereby, it is necessary to develop alternative delivery systems for prolonged vaginal release of PRG. The objective of this work was the development of pessaries for the prolonged vaginal delivery of PRG. Studies began with the preparation of an aqueous dispersion of PRG-loaded NLC (NLC_PRG), followed by the evaluation of its biocompatibility in human immortalized keratinocytes (HaCat cells), using three different methods (neutral red uptake, resazurin reduction and sulforhodamine B assays). Finally, the NLC_PRG was incorporated into pessaries, which were further characterized according to the European Pharmacopoeia to assess their suitability to prolong PRG release through the vaginal route. The results showed that, after preparation, 90% of the NLC_PRG had sizes equal or lower than 315.60 ± 0.01 nm, and an EE of 96.42 ± 0.00%. All the assays used to assess the biocompatibility of NLC_PRG showed the absence of cytotoxicity towards HaCaT cells for concentrations up to 10 μg/mL. In all cytotoxicity assays, a cytotoxic effect was only observed for concentrations equal or higher than 25 μg/mL, which provides high confidence in the obtained results. The outcomes of this study suggest the suitability of using pessaries containing PRG-loaded NLC for sustained drug release, which is an innovative therapeutic strategy and constitutes a promising alternative for the vaginal use of PRG. However, further ex vivo and in vivo studies are needed to fully clarify the pharmacokinetic and toxicological profile before reaching the clinical use.
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Affiliation(s)
- A Correia
- UCIBIO, REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - C P Costa
- UCIBIO, REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - V Silva
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - R Silva
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - J M Sousa Lobo
- UCIBIO, REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal.
| | - A C Silva
- UCIBIO, REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal; FP-ENAS (UFP Energy, Environment and Health Research Unit), CEBIMED (Biomedical Research Centre), Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal.
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15
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Vaz S, Silva R, Amaral MH, Martins E, Sousa Lobo JM, Silva AC. Corrigendum to "Evaluation of the biocompatibility and skin hydration potential of vitamin E-loaded lipid nanosystems formulations: In vitro and human in vivo studies" [Colloid Surfaces B: Biointerfaces 179 (2019) 242-249]. Colloids Surf B Biointerfaces 2020; 185:110593. [PMID: 31677413 DOI: 10.1016/j.colsurfb.2019.110593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- S Vaz
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - R Silva
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - M H Amaral
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - E Martins
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - J M Sousa Lobo
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - A C Silva
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal; FP-ENAS (UFP Energy, Environment and Health Research Unit), CEBIMED (Biomedical Research Centre), Faculty of Health Sciences, Fernando Pessoa University, Porto, Portugal
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16
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Silva AC, de Antonio VZ, Sroubek J, Gervino E, Ho K, Medeiros SA, Silva FT, Pedreira GC, Stocco FG, Nearing BD, Verrier RL. Exercise and pharmacologic stress-induced interlead T-wave heterogeneity analysis to detect clinically significant coronary artery stenosis. Int J Cardiol 2020; 298:32-38. [PMID: 31412992 DOI: 10.1016/j.ijcard.2019.07.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/08/2019] [Accepted: 07/22/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND Despite widespread use of ETT and vasodilator-stress with myocardial perfusion imaging (MPI) for noninvasive detection of flow-limiting coronary artery disease, there is continued need to improve diagnostic accuracy. We examined whether measurement of interlead T-wave heterogeneity (TWH) during exercise tolerance testing (ETT) or pharmacologic stress testing improves detection of stenoses in large epicardial coronary arteries. METHODS All 137 patients at our institution who underwent diagnostic coronary angiography within 0 to 5 days after ETT (N = 81) or dipyridamole IV infusion (N = 58) in 2016 were studied, including 2 patients with both tests. Cases (N = 93) had angiographically significant stenosis (≥50% of left main or ≥ 70% of an epicardial coronary artery ≥2 mm in diameter); controls (N = 44) did not. TWH, i.e., interlead splay of T waves, was determined by second central moment analysis from precordial leads by an investigator blinded to angiographic results. RESULTS At rest, TWH levels were similar for cases and controls. ETT and dipyridamole stress testing increased TWH by 69% (p < 0.0001) and 27% (p < 0.0001), respectively, in cases. In controls, TWH did not change. Areas under the ROC curves for TWH increase for any flow-limiting coronary artery stenosis were 0.737 (p < 0.0001) for ETT and 0.818 (p < 0.0001) for dipyridamole stress testing. By contrast, neither ST-segment changes during ETT (p = 0.12) nor MPI during dipyridamole stress testing (p = 0.60) discriminated cases from controls. CONCLUSIONS TWH measurement is a novel method that improves detection of angiographically confirmed flow-limiting stenoses in large epicardial coronary arteries during both ETT and MPI during pharmacologic stress testing with dipyridamole.
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Affiliation(s)
- Anderson C Silva
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Victor Z de Antonio
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Jakub Sroubek
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard Medical School, Department of Medicine, Boston, MA, United States of America
| | - Ernest Gervino
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard Medical School, Department of Medicine, Boston, MA, United States of America
| | - Kalon Ho
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard Medical School, Department of Medicine, Boston, MA, United States of America
| | - Sofia A Medeiros
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Fernanda Tessarolo Silva
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Giovanna C Pedreira
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Fernando G Stocco
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Bruce D Nearing
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard Medical School, Department of Medicine, Boston, MA, United States of America
| | - Richard L Verrier
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Harvard Medical School, Department of Medicine, Boston, MA, United States of America.
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17
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Freire Rodrigues E, Leite A, Cabral M, Duarte G, Marques AP, Cale E, Silva AC. Local Tuberculosis Georeference: a tool to define BCG vaccination in high-incidence area in Portugal. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz186.532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Issue
Tuberculosis (TB) incidence in Portugal is < 20/100000 people, with high-incidence municipalities in urban areas such as Amadora. In 2016, the national vaccination programme moved the BCG vaccine from universal to restricted risk groups. Amadora, due to the higher-incidence area, maintained a universal vaccination policy. Recently, it was hypothesized that vaccination could be applied to specific parishes even in high incidence counties.
Description
We aimed to identify specific geographic areas with higher risk of TB to help redefine the local BCG vaccination policy. We proposed to georeference active TB cases between 2015 and 2017, in Amadora, to then assess the incidence per parish and statistical section. We also aimed at identifying geo-clusters and density of cases.
Methods
(1) notified TB cases from 1 January of 2015 to 31 December 2017 were extracted from TB surveillance system; (2) cases of latent TB infection (LTBI), cases out of Amadora’s bounds and without national ID were excluded; (3) ArcGis®Online and associated maps were used to provide populational estimates; (4) cumulative incidence was calculated per year and averaged for the 3-year period; (5) Clusters were determined using distance and simple density of cases was calculated using Kernel algorithm.
Results
Considering the 6 parishes of Amadora, the 3-year cumulative incidence varied from 19.58 to 38.3 per 100000 hab. The highest incidence was found on the parish with the best socio-economic profile. 14 geo-clusters were mapped; 3 matched known deprived neighborhoods. Overall density was higher in these neighborhoods.
Lessons
With this approach we found that deprived neighborhoods had higher levels of case density, but 3-year cumulative incidence was higher on the parish considered to have low occurrence of TB. As such, and due to the intense population flows in Amadora, the local public health unit recommended the persistence of BCG vaccination to all residents of the municipality.
Key messages
Georeferecing supported our recommendation to mantain a universal BCG vaccination policy. Georeferencing associated to surveillance systems is highly useful to ensure evidence based public health practices, even at the local level.
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Affiliation(s)
- E Freire Rodrigues
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
| | - A Leite
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
- Public Health Research Centre, National School of Public Health, Nova University Lisbon, Lisbon, Portugal
| | - M Cabral
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
| | - G Duarte
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
| | - A P Marques
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
| | - E Cale
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
| | - A C Silva
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
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18
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Leite A, Cabral M, Rodrigues E, Vaz D, Calé E, Silva AC. Evaluating implementation of an Heat-health action plan during 2018 heatwave in Amadora, Portugal. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz186.253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Issue
Heatwave-health effects are preventable. Heat-health action plans (HHAPs) include preventive measures aimed at protecting population. In Portugal, HHAPs exist since 2004 and have been operationalized at local level. Heatwaves occur infrequently, thus experience with HHAPs is relevant to countries implementing their own HHAPs.
Description
In the summer of 2018, Amadora (Lisbon, Portugal) issued a warning from the 2nd-6th August (highest level:4th-6th). Before/during the warning we implemented: 1.climatized shelter opened available upon request;2.text messages with recommendations and information on the walk-in clinic services available;3.information to nursing homes regarding available services (walk-in services/shelter);4.contact with individuals receiving home support and identified as vulnerable. Nationwide media publicity of individual protection measures was also ongoing. We aimed at evaluating these HHAP measures. We compared demand of walk-in clinic (primary care) and emergency department with existing capacity, updated during the heatwave. Mortality was analysed using an observed-expected ratio (O/E) of week 32 (following the heatwave) and 95% confidence interval (95%CI) under a Poisson distribution. Expected deaths were the average deaths in week 32 of the previous 4 years (2014-17).
Results
In the primary care walk-in clinic the demand was ½ of capacity; hospital emergency services demand did not increase. We had no requests for the shelter unit. Regarding mortality, O/E was 1.57 (95%CI:1.12-2.14). These results are preliminary; we are producing more detailed analyses of mortality data.
Lessons
We have no counterfactual to assess the effect of our HHAP but our results indicate the possibility to reduce heatwaves-mortality further and thus the need for additional measures. We did not observed the expected surge in service demand; the adequacy of supply-based measures is currently under debate. More detailed mortality analysis will provide further insights.
Key messages
We implemented several measures during a heatwave in Amadora, Portugal with no increased demand in available health services in the area. We detected an increased mortality following the heatwave, suggesting the need to implement further measures.
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Affiliation(s)
- A Leite
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
- Public Health Research Centre, National School of Public Health, Nova University Lisbon, Lisbon, Portugal
| | - M Cabral
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
| | - E Rodrigues
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
| | - D Vaz
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
| | - E Calé
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
| | - A C Silva
- Public Health Unit, Primary Health Care Cluster Amadora, Amadora, Portugal
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19
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Silva AC, Dixe MA, Loureiro R, Simões J. O17 The Capacity of Learning in the Quality of Life of the Informal Caregiver. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz096.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A C Silva
- Health Higher School, Polytechnic Institute of Leiria, Leiria, PORTUGAL
| | - M A Dixe
- Health Higher School, Polytechnic Institute of Leiria, Leiria, PORTUGAL
| | - R Loureiro
- Management and Technology Higher School, Polytechnic Institute of Santarém, Santarém, PORTUGAL
| | - J Simões
- Management Higher School, Polytechnic Institute of Tomar, Tomar, PORTUGAL
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20
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Vaz S, Silva R, Amaral MH, Martins E, Sousa Lobo JM, Silva AC. Evaluation of the biocompatibility and skin hydration potential of vitamin E-loaded lipid nanosystems formulations: In vitro and human in vivo studies. Colloids Surf B Biointerfaces 2019; 179:242-249. [PMID: 30974262 DOI: 10.1016/j.colsurfb.2019.03.036] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/14/2019] [Accepted: 03/15/2019] [Indexed: 02/06/2023]
Abstract
Lipid-based nanosystems, such as nanostructured lipid carriers (NLC) and nanoemulsions (NE) have been described as promising alternatives to conventional formulations for increase skin hydration. Besides, these systems have been used as efficient vehicles for lipophilic molecules that improve skin properties (e.g. vitamin E). In this study, we performed comparative investigations between hydrogels formulations containing vitamin E-loaded NLC (HG-NLCVE) and vitamin E-loaded nanoemulsion (HG-NEVE). The experiments started with particle size measurements, which showed no significant differences between nanoparticles/nanodroplets sizes after incorporation in the hydrogel net (386 nm vs. 397 nm for HG-NLCVE and 402 nm vs. 514 nm for HG-NEVE). Afterwards, in vitro biocompatibility studies in human keratinocytes were carried out, being observed that the lipid-based nanosystems were more cytotoxic for the cells before incorporation in the hydrogel. Finally, the formulations hydration potential and sensory attributes for skin application were evaluated by in vitro occlusion tests and in vivo human experiments. The results showed that the HG-NLCVE exhibited the best occlusive properties, whereas the HG-NEVE performed a faster skin hydration effect. Furthermore, the latter was selected as the most attractive for skin application, although the HG-NLCVE was described as more suitable to obtain a long-lasting effect. This study demonstrated the in vitro and in vivo safety and hydration potential of hydrogels containing vitamin E-loaded lipid-based nanosystems. These results establish a basis to assess the cutaneous use of these systems, despite more in vivo experiments, for longer periods and in more volunteers, are required before commercialization.
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Affiliation(s)
- S Vaz
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - R Silva
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - M H Amaral
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - E Martins
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - J M Sousa Lobo
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - A C Silva
- UCIBIO, REQUIMTE, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal; FP-ENAS (UFP Energy, Environment and Health Research Unit), CEBIMED (Biomedical Research Centre), Faculty of Health Sciences, Fernando Pessoa University, Porto, Portugal.
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21
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Pinto L, Malfeito-Ferreira M, Quintieri L, Silva AC, Baruzzi F. Growth and metabolite production of a grape sour rot yeast-bacterium consortium on different carbon sources. Int J Food Microbiol 2019; 296:65-74. [PMID: 30851642 DOI: 10.1016/j.ijfoodmicro.2019.02.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 01/23/2019] [Accepted: 02/28/2019] [Indexed: 01/23/2023]
Abstract
The present study was designed to evaluate possible sugar-based trophic interactions between acetic acid bacteria (AAB) and non-Saccharomyces yeasts (NSY) involved in table grape sour rot, a disease in which berries spoilage is caused by the accumulation of several microbial metabolites. Acetobacter syzygii LMG 21419 (As) and Candida zemplinina CBS 9494 (Cz), a simplified AAB-NSY association responsible for table grape sour rot, grew differently in a minimal medium (YP) supplemented with glucose, ethanol, acetic and gluconic acid under monoculture conditions. In As -Cz co-culture media, after 24 h of incubation, As showed high relative abundance in YP-ethanol, whereas Cz was the dominant strain in YP-glucose medium. Co-culture in YP-glucose showed that glucose was converted into ethanol by Cz that, in turn, promoted the growth of As population. Gluconic acid was the main bacterial metabolite from glucose in monoculture, whereas acetic acid putatively derived from ethanol oxidation was found only in co-culture. However, gluconic acid showed inhibitory effect against As whereas acetic acid mainly inhibited Cz. Negative effects of both metabolites were mitigated in the glucose-supplemented medium. The results suggest a possible metabolic- based temporal succession between AAB and NSY during grape sour rot development. At the begin of sour rot, low glucose concentration promotes NSY producing ethanol, then, the AAB could take advantage from the oxidation of ethanol into acetic acid, becoming the dominant microbial sour rot population during the late stages of the process.
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Affiliation(s)
- L Pinto
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy.
| | - M Malfeito-Ferreira
- Linking Landscape, Environment, Agriculture and Food (LEAF) Research Center, Instituto Superior de Agronomia, University of Lisbon, Tapada da Ajuda, 1349-017 Lisbon, Portugal
| | - L Quintieri
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy
| | - A C Silva
- Linking Landscape, Environment, Agriculture and Food (LEAF) Research Center, Instituto Superior de Agronomia, University of Lisbon, Tapada da Ajuda, 1349-017 Lisbon, Portugal
| | - F Baruzzi
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126 Bari, Italy
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22
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Abstract
Several cytokines have been used to treat autoimmune diseases, viral infections, and cancer and to regenerate the skin. In particular, interferons (INFs) have been used to treat cancer, hepatitis B and C, and multiple sclerosis, while interleukins (ILs) and tumor necrosis factors (TNFs) have been used in the management of different types of cancer. Concerning the hematopoietic growth factors (HGFs), epoetin has been used for anemia, whereas the colony-stimulating factors (CSFs) have been used for neutropenia. Other growth factors have been extensively explored, although most still need to demonstrate in vivo clinical relevance before reaching the market.This chapter provides an overview on the therapeutic applications of biological medicines containing recombinant cytokines and growth factors (HGFs and others). From this review, we concluded that the clinical relevance of recombinant cytokines has been increasing. Since the 1980s, the European Medicines Agency (EMA) and/or Food and Drug Administration (FDA) have approved 89 biological medicines containing recombinant cytokines. Among these, 18 were withdrawn, 24 are biosimilars, and 18 are orphans.So far, considerable progress has been made in discovering new cytokines, additional cytokine functions, and how they interfere with human diseases. Future prospects include the approval of more biological and biosimilar medicines for different therapeutic applications.
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Affiliation(s)
- A C Silva
- UCIBIO/REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal.
- FP-ENAS (UFP Energy, Environment and Health Research Unit), CEBIMED (Biomedical Research Centre), Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal.
| | - J M Sousa Lobo
- UCIBIO/REQUIMTE, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
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23
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Marum AA, Silva BA, Bortolotto AL, Silva AC, de Antonio VZ, Belardinelli L, Verrier RL. Optimizing flecainide plasma concentration profile for atrial fibrillation conversion while minimizing adverse ventricular effects by rapid, low-dose intratracheal or intravenous administration. Int J Cardiol 2019; 274:170-174. [PMID: 30217428 DOI: 10.1016/j.ijcard.2018.09.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 08/21/2018] [Accepted: 09/07/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND We investigated whether rapid administration of a low dose of flecainide, either intratracheally or intravenously (IV), could accelerate conversion of atrial fibrillation (AF) while reducing adverse ventricular effects. METHODS Flecainide was delivered via intratracheal administration at 1.5 mg/kg bolus and compared to IV infusion at 1.0 mg/kg over 2 min (lower-dose, rapid) and 2.0 mg/kg over 10 min (ESC guideline) in closed-chest, anesthetized Yorkshire pigs. Catheters were fluoroscopically positioned in right atrium to measure atrial depolarization (Pa) duration and left ventricle (LV) to measure QRS complex duration and contractility (LV dP/dt) during atrial pacing at 140 beats/min. Flecainide was delivered intratracheally via a catheter positioned at the bifurcation of the main bronchi. AF was induced by intrapericardial administration of acetylcholine followed by burst pacing. RESULTS Flecainide reduced AF duration similarly by intratracheal and IV delivery. Peak plasma levels were comparable but Tmax differed and coincided with peaks in Pa prolongation. The area under the curve indicating sustained plasma levels was greater for higher-dose, slow IV flecainide than for either intratracheal instillation (by 32%) or lower-dose, rapid IV infusion (by 88%). As a result, higher-dose, slow IV flecainide caused 58% (p < 0.03) and 48% (p < 0.006) greater increases in QRS complex duration and 61% and 96% (both, p < 0.02) greater reductions in contractility compared to intratracheal and lower-dose, rapid IV flecainide, respectively. CONCLUSION Lower-dose, rapid flecainide, delivered either intratracheally or IV, optimizes the plasma concentration profile for effective conversion of AF while minimizing adverse effects on QRS complex duration and LV contractility.
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Affiliation(s)
- Alexandre A Marum
- Beth Israel Deaconess Medical Center, Boston, MA, United States of America; Department of Environmental Sciences, Harvard School of Public Health, Boston, MA, United States of America; Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Bruna A Silva
- Beth Israel Deaconess Medical Center, Boston, MA, United States of America; Department of Environmental Sciences, Harvard School of Public Health, Boston, MA, United States of America; Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Alexandre L Bortolotto
- Beth Israel Deaconess Medical Center, Boston, MA, United States of America; Department of Environmental Sciences, Harvard School of Public Health, Boston, MA, United States of America; Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Anderson C Silva
- Beth Israel Deaconess Medical Center, Boston, MA, United States of America; Department of Environmental Sciences, Harvard School of Public Health, Boston, MA, United States of America; Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Victor Z de Antonio
- Beth Israel Deaconess Medical Center, Boston, MA, United States of America; Department of Environmental Sciences, Harvard School of Public Health, Boston, MA, United States of America; Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | | | - Richard L Verrier
- Beth Israel Deaconess Medical Center, Boston, MA, United States of America; Department of Environmental Sciences, Harvard School of Public Health, Boston, MA, United States of America; Harvard Medical School, Boston, MA, United States of America.
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Verrier RL, Bortolotto AL, Silva BA, Marum AA, Stocco FG, Evaristo E, de Antonio VZ, Silva AC, Belardinelli L. Accelerated conversion of atrial fibrillation to normal sinus rhythm by pulmonary delivery of flecainide acetate in a porcine model. Heart Rhythm 2018; 15:1882-1888. [DOI: 10.1016/j.hrthm.2018.06.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Indexed: 12/14/2022]
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Duarte G, Leite Unidade A, Paixão M, Marques P, Cale E, Silva AC. Improving Vaccination Services Delivery – Local contributions to global Measles elimination. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- G Duarte
- Unidade de Saúde Pública Amadora, Administração Regional de Saúde de Lisboa e Vale do Tejo, Lisbon, Portugal
| | - A Leite Unidade
- Unidade de Saúde Pública Amadora, Administração Regional de Saúde de Lisboa e Vale do Tejo, Lisbon, Portugal
| | - M Paixão
- Unidade de Saúde Pública Amadora, Administração Regional de Saúde de Lisboa e Vale do Tejo, Lisbon, Portugal
| | - P Marques
- Unidade de Saúde Pública Amadora, Administração Regional de Saúde de Lisboa e Vale do Tejo, Lisbon, Portugal
| | - E Cale
- Unidade de Saúde Pública Amadora, Administração Regional de Saúde de Lisboa e Vale do Tejo, Lisbon, Portugal
| | - AC Silva
- Unidade de Saúde Pública Amadora, Administração Regional de Saúde de Lisboa e Vale do Tejo, Lisbon, Portugal
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Duarte G, Leite A, Paixão M, Freire Rodrigues E, Capelão H, Cale E, Vaz D, Silva AC. Costs of a School-based intervention in Amadora – are we applying our money wisely? Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky214.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- G Duarte
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - A Leite
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - M Paixão
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - E Freire Rodrigues
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - H Capelão
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - E Cale
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - D Vaz
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - AC Silva
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
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Duarte G, Leite A, Pinho M, Freire Rodrigues E, Capelão H, Cale E, Vaz D, Silva AC. Evaluating interventions in schools - growing experience in Public Health Unit in Amadora, Portugal. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky218.248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- G Duarte
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - A Leite
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - M Pinho
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - E Freire Rodrigues
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - H Capelão
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - E Cale
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - D Vaz
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
| | - AC Silva
- Unidade de Saúde Pública Amadora (Administração Regional de Saúde de Lisboa e Vale do Tejo), Lisbon, Portugal
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Freire Rodrigues E, Leite A, Duarte G, Vaz D, Marques AP, Calé E, Silva AC. Tuberculosis surveillance systems in Portugal: an evaluation in a high incidence area (2016 to 2017). Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- E Freire Rodrigues
- USPAL, ACES Amadora, Regional Health Administration of Lisbon (ARS-LVT), Lisbon, Portugal
| | - A Leite
- USPAL, ACES Amadora, Regional Health Administration of Lisbon (ARS-LVT), Lisbon, Portugal
| | - G Duarte
- USPAL, ACES Amadora, Regional Health Administration of Lisbon (ARS-LVT), Lisbon, Portugal
| | - D Vaz
- USPAL, ACES Amadora, Regional Health Administration of Lisbon (ARS-LVT), Lisbon, Portugal
| | - A P Marques
- USPAL, ACES Amadora, Regional Health Administration of Lisbon (ARS-LVT), Lisbon, Portugal
| | - E Calé
- USPAL, ACES Amadora, Regional Health Administration of Lisbon (ARS-LVT), Lisbon, Portugal
| | - A C Silva
- USPAL, ACES Amadora, Regional Health Administration of Lisbon (ARS-LVT), Lisbon, Portugal
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de Antonio VZ, Silva AC, Stocco FG, Silva BA, Marum AA, Bortolotto AL, Belardinelli L, Verrier RL. Pulmonary delivery of flecainide causes a rate‐dependent predominant effect on atrial compared with ventricular depolarization duration revealed by intracardiac recordings in an intact porcine model. J Cardiovasc Electrophysiol 2018; 29:1563-1569. [DOI: 10.1111/jce.13708] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/31/2018] [Accepted: 08/03/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Victor Z. de Antonio
- Beth Israel Deaconess Medical CenterBoston Massachusetts
- Department of Environmental SciencesHarvard School of Public HealthBoston Massachusetts
- Faculdade de Medicina da Universidade de São Paulo São Paulo Brazil
| | - Anderson C. Silva
- Beth Israel Deaconess Medical CenterBoston Massachusetts
- Department of Environmental SciencesHarvard School of Public HealthBoston Massachusetts
- Faculdade de Medicina da Universidade de São Paulo São Paulo Brazil
| | - Fernando G. Stocco
- Beth Israel Deaconess Medical CenterBoston Massachusetts
- Department of Environmental SciencesHarvard School of Public HealthBoston Massachusetts
- Faculdade de Medicina da Universidade de São Paulo São Paulo Brazil
| | - Bruna A. Silva
- Beth Israel Deaconess Medical CenterBoston Massachusetts
- Department of Environmental SciencesHarvard School of Public HealthBoston Massachusetts
- Faculdade de Medicina da Universidade de São Paulo São Paulo Brazil
| | - Alexandre A. Marum
- Beth Israel Deaconess Medical CenterBoston Massachusetts
- Department of Environmental SciencesHarvard School of Public HealthBoston Massachusetts
- Faculdade de Medicina da Universidade de São Paulo São Paulo Brazil
| | - Alexandre L. Bortolotto
- Beth Israel Deaconess Medical CenterBoston Massachusetts
- Department of Environmental SciencesHarvard School of Public HealthBoston Massachusetts
- Faculdade de Medicina da Universidade de São Paulo São Paulo Brazil
| | | | - Richard L. Verrier
- Beth Israel Deaconess Medical CenterBoston Massachusetts
- Department of Environmental SciencesHarvard School of Public HealthBoston Massachusetts
- Department of MedicineHarvard Medical SchoolBoston Massachusetts
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Verrier RL, Bortolotto AL, Silva BA, Marum AA, Stocco FG, Silva AC, De Antonio VZ, Belardinelli A. P5708Targeting atrial depolarization (Pa) duration with pulmonary delivery of flecainide for rapid AF conversion. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- R L Verrier
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, United States of America
| | - A L Bortolotto
- University of Sao Paulo, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - B A Silva
- University of Sao Paulo, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - A A Marum
- University of Sao Paulo, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - F G Stocco
- University of Sao Paulo, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - A C Silva
- University of Sao Paulo, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
| | - V Z De Antonio
- University of Sao Paulo, Faculdade de Medicina da Universidade de Sao Paulo, Sao Paulo, Brazil
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Cunha S, Almeida H, Amaral MH, Lobo JMS, Silva AC. Intranasal lipid nanoparticles for the treatment of neurodegenerative diseases. Curr Pharm Des 2017; 23:CPD-EPUB-87105. [PMID: 29189138 DOI: 10.2174/1381612824666171128105305] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 11/10/2017] [Accepted: 11/15/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Current treatments for neurodegenerative diseases are challenging, due to the absence of full effective medicines. One of the major problems associated to these is the occurrence of non-targeting events, which leads to adverse effects and requires frequent dose administration. METHODS Researches have been performed to develop new drug delivery systems administrated by alternative routes. For example, the direct nose-to-brain delivery of drugs by means of lipid nanoparticles, such as solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC), have been showing promising results. RESULTS Among the advantages of intranasal administration is the avoidance of passing the blood-brain barrier (BBB) to reach the central nervous system (CNS), allowing the direct delivery of drugs to the brain by a non-invasive way, minimizing systemic exposure and prolonging residence time. This review article discusses the advantages of using SLN and NLC for direct nose-to-brain drug delivery. A brief reference to other lipid-based carriers (liposomes, nanoemulsions and microemulsions) is also provided. CONCLUSION The benefits of using SLN and NLC for improve nasal drug delivery have been demonstrated by in vitro, ex vivo and in vivo experiments. However, more in vivo animal studies are needed for advance to human clinical trials and reach clinics.
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Affiliation(s)
- S Cunha
- Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto. Portugal
| | - H Almeida
- Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto. Portugal
| | - M H Amaral
- Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto. Portugal
| | - J M Sousa Lobo
- Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto. Portugal
| | - A C Silva
- Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto. Portugal
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Garcês A, Amaral MH, Sousa Lobo JM, Silva AC. Formulations based on solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) for cutaneous use: A review. Eur J Pharm Sci 2017; 112:159-167. [PMID: 29183800 DOI: 10.1016/j.ejps.2017.11.023] [Citation(s) in RCA: 192] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 11/03/2017] [Accepted: 11/24/2017] [Indexed: 10/18/2022]
Abstract
Cutaneous use of lipid nanoparticles (solid lipid nanoparticles, SLN and nanostructured lipid carriers, NLC) has been showing promising results. These systems consist of low viscosity aqueous dispersions, being usually employed by means of semi-solid formulations with adequate consistency for skin application. This review addresses the cutaneous use of lipid nanoparticles for therapeutic and cosmetic applications. Initially, general information related to pharmaceutical semi-solid formulations is presented. Afterwards, the effects of SLN and NLC on the skin, and technological aspects related to semi-solid systems based on SLN or NLC are described. Finally, the most relevant studies related to the formulations based on SLN and NLC, for cosmetic and therapeutic applications, are reported. Notwithstanding the cutaneous use of SLN and NLC has been proposed for both local and transdermal delivery, the reported studies show promising results only for local application. In this sense, more research is required to better understanding the interaction mechanisms of lipid nanoparticles with skin lipids. Furthermore, the development of standard methods for skin experiments with nanoparticles is necessary.
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Affiliation(s)
- A Garcês
- UFP Energy, Environment and Health Research Unit (FP-ENAS), Fernando Pessoa University, Porto, Portugal
| | - M H Amaral
- UCIBIO, ReQuimTe, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal.
| | - J M Sousa Lobo
- UCIBIO, ReQuimTe, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal
| | - A C Silva
- UFP Energy, Environment and Health Research Unit (FP-ENAS), Fernando Pessoa University, Porto, Portugal; UCIBIO, ReQuimTe, Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, Porto University, Porto, Portugal.
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Silva AC, Ricalde MP. First Occurrence of Sternochetus mangiferae (Fabricius) (Coleoptera: Curculionidae) in Brazil. Neotrop Entomol 2017; 46:587-590. [PMID: 28540532 DOI: 10.1007/s13744-017-0523-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 03/30/2017] [Indexed: 06/07/2023]
Abstract
Specimens of the mango stone weevil Sternochetus mangiferae (Fabricius) (Coleoptera: Curculionidae) were found in fruits of mango from a tree in the residential area of the Rio de Janeiro, RJ. This is the first report of the S. mangiferae in Brazil, currently regulated as an absent quarantine pest in the country. A taxonomist specialized in Curculionidae confirmed the identification based on morphological diagnostics characteristics. This detection is a relevant finding, because Brazil is a major producer and exporter of mango and the main areas of mango for exportation are located very far from this detection point. This pest damages seed and embryo of mango fruits and it causes reduction of fruit size and its premature dropping. The detection was notified to the Plant Health Department, division of the Brazilian Ministry of Agriculture, Livestock and Food Supply (MAPA), which is the National Plant Protection Organization of Brazil.
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Affiliation(s)
- A C Silva
- Empresa Brasileira de Pesquisa Agropecuária, Centro Nacional de Pesquisa em Agrobiologia, Lab de Controle Biológico, Rodovia BR 465, Km 7, Cep 23897-970, Seropedica, RJ, Brasil.
| | - M P Ricalde
- Empresa Brasileira de Pesquisa Agropecuária, Centro Nacional de Pesquisa em Agrobiologia, Lab de Controle Biológico, Rodovia BR 465, Km 7, Cep 23897-970, Seropedica, RJ, Brasil
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Cunha S, Amaral MH, Lobo JMS, Silva AC. Therapeutic Strategies for Alzheimer's and Parkinson's Diseases by Means of Drug Delivery Systems. Curr Med Chem 2017; 23:3618-3631. [PMID: 27554805 DOI: 10.2174/0929867323666160824162401] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/21/2016] [Accepted: 07/20/2016] [Indexed: 11/22/2022]
Abstract
Alzheimer's and Parkinson's diseases are prevalent neurodegenerative disorders worldwide, which are essentially related to aging. Within the remarkable era of nanomedicine, nowadays several delivery systems have been suggested to improve the treatment of these disorders, namely, liposomes, micelles, nanoparticles (polymeric, lipid, metallic and inorganic), exosomes, dendrimers and fullerenes. The advantage that has been claimed to these delivery systems is that they facilitate the passage of drugs through the blood brain barrier (BBB), enabling targeting before body degradation, and increasing therapeutic efficacy, comparied to conventional pharmaceutical dosage forms. This review article provides a state of the art regarding the drug delivery systems that have been studied for the treatment of Alzheimer's and Parkinson's diseases. It begins with a brief description of the central nervous system (CNS) and the mechanisms involved in the development of these diseases. Later, some examples of drugs used in the treatment of these neurodegenerative diseases are presented, which are currently available in conventional pharmaceutical dosage forms, and in new drug delivery systems that are under development.
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Affiliation(s)
| | - M H Amaral
- Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, P-4050-313 Porto Portugal..
| | | | - A C Silva
- Laboratory of Pharmaceutical Technology/Centre of Research in Pharmaceutical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, P-4050-313 Porto Portugal..
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Silva AC, Varela AS, Cardoso TF, Silva EF, Loebmann D, Corcini CD. Evaluation of sperm quality of Erythrolamprus poecilogyrus sublineatus (Cope, 1860) (Serpentes, Dipsadidae). BRAZ J BIOL 2017; 77:553-557. [PMID: 28099575 DOI: 10.1590/1519-6984.19215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 05/12/2016] [Indexed: 11/22/2022] Open
Abstract
Erythrolamprus poecilogyrus sublineatus (Cope, 1860), is a species widely distributed in the Pampa Domain, occurring in Rio Grande do Sul, Argentina and Uruguay, mainlyin the pampa region. In the coastal region of southern Brazil this is serpent is considered one of the most abundant. The purpose of the present study is to describe the techniques of sperm evaluation in vitro for E. poecilogyrus sublineatus in the coastal plain of Rio Grande do Sul, Brazil. After laparatomy the efferent vases were collected and the semen was diluted in 1ml Beltsville Thawing Solution. The characteristics of motility, membrane integrity, mitochondria, acrosome, DNA, cell viability and cellular functionality were evaluated. Fluorescent probes were used for the evaluation of sperm structure in epifluorescence microscope. With the techniques described, it was possible to identify intact and injured cells, enabling the determination of cell characteristics for the spring season (October and November). It was observed in the analyses that 80% of sperm cells were mobile and that 84.1 ± 8.0% of sperm membranes were intact. The standards found were of 48 ± 13.8% of intact acrosome, 73.6 ± 6.0 of perfect DNA and of 91.8 ± 4.0 of functional mitochondria. Thus, these values from the sperm analysis can be used as standards for the species Erythrolamprus poecilogyrus sublineatus.
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Affiliation(s)
- A C Silva
- Center for Research and Education in Animal Reproduction, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, Campus Universitário, s/n, CEP 96160-000, Capão do Leão, RS, Brazil
| | - A S Varela
- Institute of Biological Sciences, Universidade Federal do Rio Grande - FURG, Campus Carreiros, Av. Itália, Km 8, Bairro Carreiros, CEP 96203-900, Rio Grande, RS, Brazil
| | - T F Cardoso
- Institute of Biological Sciences, Universidade Federal do Rio Grande - FURG, Campus Carreiros, Av. Itália, Km 8, Bairro Carreiros, CEP 96203-900, Rio Grande, RS, Brazil
| | - E F Silva
- Institute of Biological Sciences, Universidade Federal do Rio Grande - FURG, Campus Carreiros, Av. Itália, Km 8, Bairro Carreiros, CEP 96203-900, Rio Grande, RS, Brazil
| | - D Loebmann
- Institute of Biological Sciences, Universidade Federal do Rio Grande - FURG, Campus Carreiros, Av. Itália, Km 8, Bairro Carreiros, CEP 96203-900, Rio Grande, RS, Brazil
| | - C D Corcini
- Center for Research and Education in Animal Reproduction, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, Campus Universitário, s/n, CEP 96160-000, Capão do Leão, RS, Brazil
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Nunes B, Barreto M, Gil AP, Kislaya I, Namorado S, Antunes L, Gaio V, Santos AJ, Rodrigues AP, Santos J, Alves-Alves C, Castilho E, Cordeiro E, Dinis A, Prokopenko T, Silva AC, Vargas P, Lyshol H, Dias CM. The first Portuguese National Health Examination Survey (2015): design, planning and implementation. Eur J Public Health 2016. [DOI: 10.1093/eurpub/ckw175.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Silva AC, Rodrigues SC, Caldeira J, Nunes AM, Sampaio-Pinto V, Resende TP, Oliveira MJ, Barbosa MA, Thorsteinsdóttir S, Nascimento DS, Pinto-do-Ó P. Three-dimensional scaffolds of fetal decellularized hearts exhibit enhanced potential to support cardiac cells in comparison to the adult. Biomaterials 2016; 104:52-64. [PMID: 27424216 DOI: 10.1016/j.biomaterials.2016.06.062] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 06/25/2016] [Accepted: 06/28/2016] [Indexed: 12/11/2022]
Abstract
A main challenge in cardiac tissue engineering is the limited data on microenvironmental cues that sustain survival, proliferation and functional proficiency of cardiac cells. The aim of our study was to evaluate the potential of fetal (E18) and adult myocardial extracellular matrix (ECM) to support cardiac cells. Acellular three-dimensional (3D) bioscaffolds were obtained by parallel decellularization of fetal- and adult-heart explants thereby ensuring reliable comparison. Acellular scaffolds retained main constituents of the cardiac ECM including distinctive biochemical and structural meshwork features of the native equivalents. In vitro, fetal and adult ECM-matrices supported 3D culture of heart-derived Sca-1(+) progenitors and of neonatal cardiomyocytes, which migrated toward the center of the scaffold and displayed elongated morphology and excellent viability. At the culture end-point, more Sca-1(+) cells and cardiomyocytes were found adhered and inside fetal bioscaffolds, compared to the adult. Higher repopulation yields of Sca-1(+) cells on fetal ECM relied on β1-integrin independent mitogenic signals. Sca-1(+) cells on fetal bioscaffolds showed a gene expression profile that anticipates the synthesis of a permissive microenvironment for cardiomyogenesis. Our findings demonstrate the superior potential of the 3D fetal microenvironment to support and instruct cardiac cells. This knowledge should be integrated in the design of next-generation biomimetic materials for heart repair.
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Affiliation(s)
- A C Silva
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto 4200-135, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto 4200-135, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto 4050-313, Portugal; Gladstone Institutes, University of California San Francisco, San Francisco 94158, USA
| | - S C Rodrigues
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto 4200-135, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto 4200-135, Portugal
| | - J Caldeira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto 4200-135, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto 4200-135, Portugal
| | - A M Nunes
- Centre for Ecology, Evolution and Environmental Change, Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - V Sampaio-Pinto
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto 4200-135, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto 4200-135, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto 4050-313, Portugal
| | - T P Resende
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto 4200-135, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto 4200-135, Portugal
| | - M J Oliveira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto 4200-135, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto 4200-135, Portugal; Faculty of Medicine, University of Porto, Porto 4200-319, Portugal
| | - M A Barbosa
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto 4200-135, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto 4200-135, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto 4050-313, Portugal
| | - S Thorsteinsdóttir
- Centre for Ecology, Evolution and Environmental Change, Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - D S Nascimento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto 4200-135, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto 4200-135, Portugal.
| | - P Pinto-do-Ó
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto 4200-135, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto 4200-135, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto 4050-313, Portugal; Unit for Lymphopoiesis, Immunology Department, INSERM U668, University Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur. Institut Pasteur, Paris, France.
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Nascimento ER, Maia ACO, Nardi AE, Silva AC. Sexual dysfunction in arterial hypertension women: The role of depression and anxiety. J Affect Disord 2015; 181:96-100. [PMID: 25942437 DOI: 10.1016/j.jad.2015.03.050] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 03/23/2015] [Accepted: 03/26/2015] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Although high blood pressure is known to be associated with sexual dysfunction, this phenomenon has been little studied in females and has received little intervention in clinical practice. OBJECTIVE To identify the presence of sexual dysfunction, considering the different possible domains and to evaluate its relationship with the presence of symptoms of anxiety and depression in women with arterial hypertension. METHODOLOGY One hundred fifty seven women (from 56.4 years) with a diagnosis of arterial hypertension were evaluated with media through the Female Sexual Function Index (FSFI) and the Hospital Anxiety and Depression Scale (HADS). RESULTS High rates of sexual dysfunction were detected in the women evaluated, and this dysfunction was in all domains as follows: desire (68.2%), excitement (68.2%), lubrication (41.1%), orgasm (55.4%), satisfaction (66.42%) and pain (56.1%). Elevated rates of symptoms of anxiety (43.3%) and depression (26.8%) were also found in our sample. Nevertheless, in the present study, such symptoms showed no relationship with sexual dysfunction levels for any of the domains assessed. CONCLUSION Hypertensive patients exhibit an elevated presence of sexual dysfunction, as well as anxious and depressive symptoms. Although the literature on female sexuality indicates influences of these symptoms on sexual functions, this study did not identify such a relationship in the studied population. Sexuality is an important element in patient quality of life, and a broad understanding of female sexual function is fundamental for good follow-up in these patients.
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Affiliation(s)
- E R Nascimento
- Laboratory of Panic and Respiration - Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Brazil.
| | - A C O Maia
- Laboratory of Panic and Respiration - Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Brazil.
| | - A E Nardi
- Laboratory of Panic and Respiration - Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Brazil; National Institute for Science and Technology - Translational Medicine, Brazil.
| | - A C Silva
- Laboratory of Panic and Respiration - Institute of Psychiatry, Universidade Federal do Rio de Janeiro, Brazil; National Institute for Science and Technology - Translational Medicine, Brazil.
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Kang BT, Leoni RF, Silva AC. Impaired CBF regulation and high CBF threshold contribute to the increased sensitivity of spontaneously hypertensive rats to cerebral ischemia. Neuroscience 2014; 269:223-31. [PMID: 24680939 DOI: 10.1016/j.neuroscience.2014.03.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 03/03/2014] [Accepted: 03/17/2014] [Indexed: 01/26/2023]
Abstract
The correlation between temporal changes of regional cerebral blood flow (rCBF) and the severity of transient ischemic stroke in spontaneously hypertensive rats (SHR) and Wistar-Kyoto rats (WKY) was investigated using T2-, diffusion- and perfusion-weighted magnetic resonance imaging at six different time points: before and during 1h of unilateral middle cerebral artery occlusion (MCAO), 1h after reperfusion, and 1 day, 4 days and 7 days after MCAO. rCBF values were measured in both hemispheres, and the perfusion-deficient lesion (PDL) was defined as the area of the brain with a 57% or more reduction in basal CBF. Within the PDL, regions were further refined as ischemic core (rCBF=0-6 mL/100 g/min), ischemic penumbra (rCBF=6-15 mL/100 g/min) and benign oligemia (rCBF>15 mL/100 g/min). SHR and WKY had identical initial volume of the PDLs (WKY: 32.52 ± 4.08% vs. SHR: 33.95 ± 3.68%; P>0.05) and the maximum rCBF measured within those lesions (WKY: 38.20 ± 3.57 mL/100g/min vs. SHR: 38.46 ± 6.22 mL/100 g/min; P>0.05) during MCAO. However, in SHR virtually all of the PDL progressed to become the final ischemic lesion (33.02 ± 5.41%, P>0.05), while the final ischemic lesion volume of WKY (12.62 ± 9.19%) was significantly smaller than their original PDL (P<0.01) and similar to the ischemic core (13.13 ± 2.96%, P>0.05). The region with the lowest range of rCBF was positively correlated with the final ischemic lesion volume (r=0.716, P<0.01). Both during ischemia and after reperfusion, rCBF in either ipsilesional and contralesional brain hemispheres of SHR could not be restored to pre-ischemic levels, and remained lower than in WKY until up to 4 days after MCAO. The data suggest that impaired CBF regulation and relatively high CBF threshold for ischemia are strong contributors to the increased susceptibility of SHR to ischemic stroke.
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Affiliation(s)
- B-T Kang
- Cerebral Microcirculation Unit, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA; Laboratory of Molecular Imaging and Translational Research, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - R F Leoni
- Cerebral Microcirculation Unit, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA; Department of Neuroscience and Behavioral Sciences, FMRP, University of Sao Paulo, Ribeirao Preto, Brazil
| | - A C Silva
- Cerebral Microcirculation Unit, Laboratory of Functional and Molecular Imaging, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
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Maia ACCO, Braga AA, Soares-Filho G, Pereira V, Nardi AE, Silva AC. Efficacy of cognitive behavioral therapy in reducing psychiatric symptoms in patients with implantable cardioverter defibrillator: an integrative review. ACTA ACUST UNITED AC 2014; 47:265-72. [PMID: 24652325 PMCID: PMC4075289 DOI: 10.1590/1414-431x20133418] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 12/13/2013] [Indexed: 11/21/2022]
Abstract
This article is a systematic review of the available literature on the benefits that cognitive behavioral therapy (CBT) offers patients with implanted cardioverter defibrillators (ICDs) and confirms its effectiveness. After receiving the device, some patients fear that it will malfunction, or they remain in a constant state of tension due to sudden electrical discharges and develop symptoms of anxiety and depression. A search with the key words "anxiety", "depression", "implantable cardioverter", "cognitive behavioral therapy" and "psychotherapy" was carried out. The search was conducted in early January 2013. Sources for the search were ISI Web of Knowledge, PubMed, and PsycINFO. A total of 224 articles were retrieved: 155 from PubMed, 69 from ISI Web of Knowledge. Of these, 16 were written in a foreign language and 47 were duplicates, leaving 161 references for analysis of the abstracts. A total of 19 articles were eliminated after analysis of the abstracts, 13 were eliminated after full-text reading, and 11 articles were selected for the review. The collection of articles for literature review covered studies conducted over a period of 13 years (1998-2011), and, according to methodological design, there were 1 cross-sectional study, 1 prospective observational study, 2 clinical trials, 4 case-control studies, and 3 case studies. The criterion used for selection of the 11 articles was the effectiveness of the intervention of CBT to decrease anxiety and depression in patients with ICD, expressed as a ratio. The research indicated that CBT has been effective in the treatment of ICD patients with depressive and anxiety symptoms. Research also showed that young women represented a risk group, for which further study is needed. Because the number of references on this theme was small, further studies should be carried out.
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Affiliation(s)
- A C C O Maia
- Laboratório de Pânico e Respiração, Instituto de Psiquiatria, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - A A Braga
- Laboratório de Pânico e Respiração, Instituto de Psiquiatria, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - G Soares-Filho
- Laboratório de Pânico e Respiração, Instituto de Psiquiatria, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - V Pereira
- Laboratório de Pânico e Respiração, Instituto de Psiquiatria, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - A E Nardi
- Laboratório de Pânico e Respiração, Instituto de Psiquiatria, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - A C Silva
- Laboratório de Pânico e Respiração, Instituto de Psiquiatria, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
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Sousa ED, Werther K, Berchieri Junior A, Almeida AM, Ardisson FA, Silva AC, Candioto CG, Fernandes SA. Experimental infection of one-day-old chicks with Salmonella Serotypes Previously isolated from poultry facilities, wild birds, and swine. Rev Bras Cienc Avic 2013. [DOI: 10.1590/s1516-635x2013000400003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Silva AC, Percegona LS, França AL, Dos Santos TM, Perini CC, González P, Rebelatto CLK, Câmara NOS, Aita CAM. Expression of pancreatic endocrine markers by mesenchymal stem cells from human adipose tissue. Transplant Proc 2013; 44:2495-6. [PMID: 23026628 DOI: 10.1016/j.transproceed.2012.07.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Mesenchymal stem cells (MSCs) from human adipose tissue have a great potential for use in cell therapy due to their ease of isolation, expansion, and differentiation, besides the relative acceptance from the ethical point of view. Our intention was to isolate and promote in vitro expansion and differentiation of MSCs from human adipose tissue into cells with a pancreatic endocrine phenotype. Human adipose tissue obtained from patients undergoing abdominal dermolipectomy was digested with type I collagenase. MSCs isolated by plastic adherence and characterized by cytochemistry and FACS were expanded in vitro. MSC differentiation into an endocrine phenotype was induced over 2 to 4 months with high glucose (25 mmol/L) media containing nicotinamide, exendin-4, and 2-mercaptoethanol. Insulin and glucagon expressions were analyzed by immunofluorescence. Cells isolated from human adipose tissue and expanded in vitro expressed MSC markers as confirmed by FACS and cytochemistry. Insulin but not glucagon production by differentiated cells was demonstrated by immunofluorescence. MSCs isolated from human adipose tissue were induced to differentiate in vitro into an endocrine phenotype that expressed insulin.
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Affiliation(s)
- A C Silva
- Centro de Ciências Biológicas e da Saúde, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil
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Sousa CA, Clairouin M, Seixas G, Viveiros B, Novo MT, Silva AC, Escoval MT, Economopoulou A. Ongoing outbreak of dengue type 1 in the Autonomous Region of Madeira, Portugal: preliminary report. ACTA ACUST UNITED AC 2012; 17. [PMID: 23231893 DOI: 10.2807/ese.17.49.20333-en] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Following the identification of two autochthonous cases of dengue type 1 on 3 October 2012, an outbreak of dengue fever has been reported in Madeira, Portugal. As of 25 November, 1,891 cases have been detected on the island where the vector Aedes aegypti had been established in some areas since 2005. This event represents the first epidemic of dengue fever in Europe since 1928 and concerted control measures have been initiated by local health authorities.
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Affiliation(s)
- C A Sousa
- Unidade de Ensino e Investigacao de Parasitologia Medica, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisbon, Portugal.
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Jones A, Silva PG, Silva AC, Colucci M, Tuffanin A, Jardim JR, Natour J. Evaluation of immediate impact of cane use on energy expenditure during gait in patients with knee osteoarthritis. Gait Posture 2012; 35:435-9. [PMID: 22177285 DOI: 10.1016/j.gaitpost.2011.11.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2010] [Revised: 11/01/2011] [Accepted: 11/03/2011] [Indexed: 02/02/2023]
Abstract
PURPOSE The aim of the present study was to assess the immediate impact of cane use on energy expenditure during gait in patients with knee OA analyzing VO(2). METHODS An observational, cross-sectional study was carried out on 64 symptomatic patients with a diagnosis of knee OA. The assessment of energy expenditure was performed through an analysis of expired gases using the portable K4 apparatus (Cosmed, Model K4 b2, Italy) during the six-min walk test (6MWT). Two tests were performed with a cane and two without a cane on two different days within a seven-day period. RESULTS The patients walked farther on the test without the cane (p<0.001). Oxygen expenditure (VO(2)) and the O(2) cost of walking at the end of the 6MWT increased approximately 50% and 80% during cane-assisted gait when compared to gait without the use of a cane (p<0.001). Pain (Borg scale) decreased approximately 20% at the end of the 6MWT with cane-assisted gait in comparison to gait without a cane (p<0.001). CONCLUSION Cane use causes an immediate increase in energy expenditure (VO(2)) during gait and O(2) cost of walking and an immediate decrease of pain during gait. It is necessary to do a more prolonged follow up in order to assess the impact of daily cane use on energy expenditure among these patients and determine whether adaptation occurs. Furthermore, it is necessary to study whether daily cane use has a positive impact on important parameters in these patients, such as pain, function and quality of life.
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Affiliation(s)
- A Jones
- Rheumatology Rehabilitation Section, Rheumatology Division, Universidade Federal de Sao Paulo, Brazil
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Oberlender G, Murgas LDS, Zangeronimo MG, Silva AC, Pereira LJ, Muzzi RAL. Comparison of two different methods for evaluating boar semen morphology. ACTA ACUST UNITED AC 2012. [DOI: 10.4067/s0301-732x2012000200016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Jones A, Silva PG, Silva AC, Colucci M, Tuffanin A, Jardim JR, Natour J. Impact of cane use on pain, function, general health and energy expenditure during gait in patients with knee osteoarthritis: a randomised controlled trial. Ann Rheum Dis 2011; 71:172-9. [DOI: 10.1136/ard.2010.140178] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Munasinghe JP, Banerjee M, Acosta MT, Banks M, Heffer A, Silva AC, Koretsky A, Theodore WH. Arterial spin labeling demonstrates that focal amygdalar glutamatergic agonist infusion leads to rapid diffuse cerebral activation. Acta Neurol Scand 2010; 121:209-16. [PMID: 19951270 DOI: 10.1111/j.1600-0404.2009.01188.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To investigate acute effects of intra-amygdalar excitatory amino acid administration on blood flow, relaxation time and apparent diffusion coefficient in rat brain. MATERIALS AND METHODS Several days after MR-compatible cannula placement in right basolateral amygdala, anesthetized rats were imaged at 7 T. Relative cerebral blood flow (CBF) was measured before and 60 min after infusion of 10 nmol KA, cAMPA, ATPA, or normal saline using arterial spin labeling. Quantitative T(2) and diffusion-weighted images were acquired. rCBF, T(2) and ADC values were evaluated in bilateral basolateral amygdala, hippocampus, basal ganglia, frontal and parietal regions. RESULTS KA led to the highest, and ATPA lowest bilateral rCBF increases. Time courses varied among drugs. T(2) for KA and AMPA was higher while ADC was lower for KA. CONCLUSIONS Intra-amygdalar injection of GluR agonists evoked bilateral seizure activity and increased rCBF, greater for KA and AMPA than selective ATPA GluR5 activation.
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Affiliation(s)
- J P Munasinghe
- MRI Research Facility, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
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Abstract
Solid lipid nanoparticles (SLN) composed of trimyristin (solid lipid) and poloxamer 407 (surfactant) were prepared by a w/o/w emulsion technique for the incorporation of Salmon calcitonin, and further explored as protein carriers for oral delivery. Trimyristin SLN showed a mean size diameter of 200 nm with an association efficiency for calcitonin of approx. 86%. The morphology of SLN was investigated by cryo-SEM and by AFM, revealing spheroid shape SLN with a smooth surface. The in vitro release of calcitonin occurred for a period of 8 h, under both gastric and intestinal simulated pH conditions, predicting suitable properties for oral administration. The pharmacological activity of the protein was evaluated following oral dosage of calcitonin-loaded SLN in rats. SLN lowered the basal blood calcium levels by up to 20% with 500 IU/kg dose sustaining hypocalcaemia over 8 h. The results indicate that incorporation of Salmon calcitonin into trimyristin SLN is a key factor for the improvement of the efficiency of such carriers for oral delivery of proteins.
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Affiliation(s)
- S Martins
- Faculty of Pharmacy, University of Porto, Rua Aníbal Cunha 164, 4050-030 Porto, Portugal
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Silva AC, Levy L, Trindade JC, Mendonça P, Silva C, Lopes AI. Faecal and serum levels of eosinophil cationic protein in a healthy paediatric population. Scandinavian Journal of Clinical and Laboratory Investigation 2009; 67:757-66. [PMID: 17852809 DOI: 10.1080/00365510701308337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Eosinophil cationic protein (ECP) has been regarded as an excellent marker of eosinophil activation in various diseases where eosinophil-mediated inflammation plays a role. Recently, it has been suggested as a faecal marker of intestinal inflammation in several immune-mediated diseases with gastrointestinal expression. Owing to the scarcity of information at paediatric age, the establishment of reference values is necessary before further clinical studies. OBJECTIVE To determine faecal and serum ECP levels in healthy children and their association with other biological parameters, thereby providing background additional validation data for this age group. METHODS Faecal and serum ECP levels were available from healthy Caucasian children recruited at a regular outpatient clinic. Exclusion criteria were: chronic illnesses, acute illness, mucosal bleeding and recent pharmacological medication. Faecal and serum ECP levels and faecal a1AT were determined by commercial radioimmunoassay and serum IgE by fluoroenzyme immunoassay Uni-CAP. RESULTS Mean and median faecal ECP levels were 1.93 microg/g and 1.20 microg/g, respectively (range 0.41-22.20),while the corresponding serum ECP levels were 13.50 microg/L and 9.54 microg/L, respectively (range 0.20-74.8). The cut-offs found were 2.80 microg/g and 16.89 microg/L for faecal and serum ECP, respectively. A significant (p=0.001) increase in serum, but not in faecal, ECP levels was found among patients with high peripheral eosinophil blood count. Neither faecal nor serum ECP levels were influenced by serum IgE levels. CONCLUSIONS Faecal and serum ECP levels, as determined in the present study, add background information concerning reference levels at paediatric age for further studies indifferent clinical settings.
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Affiliation(s)
- A C Silva
- Paediatric Department, University Hospital de Santa Maria, Lisbon, Portugal.
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Silva AC, Santos D, Ferreira DC, Souto EB. Minoxidil-loaded nanostructured lipid carriers (NLC): characterization and rheological behaviour of topical formulations. Pharmazie 2009; 64:177-182. [PMID: 19348340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Lipid nanoparticles are used as biocompatible carriers for several types of drugs intended for pharmaceutical, cosmetic, and biochemical purposes. The wide range of lipids and surfactants available for the production of such particles turns these carriers highly suitable for distinct applications (topical, dermal and transdermal, parenteral, pulmonary, and oral administration). This work describes the development of a special type of lipid particles, namely nanostructured lipid carriers (NLC), for minoxidil as an alternative to conventional topical alcoholic solutions. NLC were composed of stearic acid and oleic acid, being the matrix stabilized with poloxamer 188 in aqueous dispersion. To develop a suitable topical formulation, lipid dispersions were further mixed with freshly prepared Carbopol or perfluorocarbon based hydrogels. Minoxidil-loaded NLC were approximately 250 nm in size before the entrapment within the gel network and remained below 500 nm after mixing with both types of hydrogels. The occurrence of minoxidil crystallization in the aqueous phase of lipid dispersions was discarded under analysis by light microscopy and by scanning electron microscopy. Differential scanning calorimetry was used to assess the recrystallization index (i.e. measure of the percentage of lipid matrix that is crystallized) of the particles, which was shown to be 62% for minoxidil-free dispersions and 68% for minoxidil-loaded NLC dispersions. Rheological analysis of hydrogels containing NLC dispersions showed typical pseudoplastic behaviour which makes them suitable for topical purposes.
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Affiliation(s)
- A C Silva
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Porto University, Portugal
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