1
|
Almeida LF, Gil GA, Moraes LN, Furtado FB, Kakuda L, Grotto RMT, Oliveira WP. Nanostructured lipid carriers loaded with essential oils: a strategy against SARS-CoV-2. J Microencapsul 2024:1-12. [PMID: 38686964 DOI: 10.1080/02652048.2024.2348463] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 04/24/2024] [Indexed: 05/02/2024]
Abstract
This work aimed to investigate the effectiveness of Lippia sidoides and Syzygium aromaticum essential oils (EOs) encapsulated in nanostructured lipid carriers (NLCs) as SARS-CoV-2 inhibitors through virucidal activity assessment. We developed anionic and cationic NLCs loaded with the EOs and assessed their physicochemical properties and SARS-CoV-2 virucidal activity, focusing on the effects of EO type and the NLCs composition. The NLCs exhibited particle sizes of 141.30 to 160.53 nm for anionic and 109.30 to 138.60 nm for cationic types, with PDIs between 0.16 and 0.25. High zeta potentials (>29.0 in modulus) indicated stable formulations. The NLCs effectively encapsulated the EOs, achieving encapsulation efficiencies between 84.6 to 100% w/w of marker compound. The EOs-loaded NLCs reduced the SARS-CoV-2 virion count, exceeding 2 logs over the control. NLCs loaded with Lippia sidoides and Syzygium aromaticum EOs represent an innovative strategy for combating SARS-CoV-2.
Collapse
Affiliation(s)
- L F Almeida
- Laboratory of Applied Biotechnology, Clinical Hospital of the Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - G A Gil
- Laboratory of Pharmaceutical Processes/LAPROFAR, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - L N Moraes
- Laboratory of Applied Biotechnology, Clinical Hospital of the Medical School, São Paulo State University (UNESP), Botucatu, Brazil
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu, Brazil
| | - F B Furtado
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu, Brazil
- Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - L Kakuda
- Laboratory of Pharmaceutical Processes/LAPROFAR, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - R M T Grotto
- Laboratory of Applied Biotechnology, Clinical Hospital of the Medical School, São Paulo State University (UNESP), Botucatu, Brazil
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu, Brazil
- Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - W P Oliveira
- Laboratory of Pharmaceutical Processes/LAPROFAR, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| |
Collapse
|
2
|
Lima EA, Cunha FA, Oliveira MJ, Lyra WS, Junior MM, Santos JC, Ferreira SL, Araujo MC, Almeida LF. Fast automated method for the direct determination of total antimony in grape juice samples by hydride generation and atomic fluorescence spectrometric detection without external pretreatment. Food Chem 2022; 381:132194. [DOI: 10.1016/j.foodchem.2022.132194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/30/2021] [Accepted: 01/16/2022] [Indexed: 12/26/2022]
|
3
|
Siqueira LA, Almeida LF, Fernandes JPA, Araújo MCU, Lima RAC. Ultrasonic-assisted extraction and automated determination of catalase and lipase activities in bovine and poultry livers using a digital movie-based flow-batch analyzer. Ultrason Sonochem 2021; 79:105774. [PMID: 34628308 PMCID: PMC8501505 DOI: 10.1016/j.ultsonch.2021.105774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/20/2021] [Revised: 09/20/2021] [Accepted: 09/26/2021] [Indexed: 05/26/2023]
Abstract
An ultrasonic reactor (UR) was developed and coupled to a digital movie-based flow-batch analyzer (DM-FBA) for the ultrasonic-assisted extraction (UAE) and fast determination of catalase and lipase activities in bovine and poultry livers. The lab-made UR mainly consisted of a borosilicate glass container and a piezoelectric disc. The DM-FBA mainly consisted of a webcam, an ultrasonic actuator controller, a peristaltic pump, six solenoid valves, a valve driver, a mixing chamber, a magnetic stirrer, an Arduino Mega 2560, and a personal computer. This setup, named UR-DM-FBA, was controlled by custom software. Ultrasound (US) frequency, US power, sonication time, and concentration of extraction agent were optimized using the Taguchi method. Experiments at silent conditions (mechanical stirring at 1500 rpm) were carried out to evaluate extraction efficiency. Optimized parameters for the UAE of catalase were US frequency of 30 kHz, 2.0 mL of Triton X-100, sonication time of 270 s, and US power of 10.8 W. For the UAE of lipase, the optimized parameters were US frequency of 20 kHz, 0.30 mL of triethanolamine, sonication time of 270 s, and US power of 18 W. Catalase and lipase activities obtained with the UR were, on average, 1.9 × 103% and 2.0 × 103% higher than those obtained at silent conditions, respectively, which indicates that that the lab-made UR was capable of extracting these enzymes more efficiently. Determinations using the UR-DM-FBA were highly accurate (relative error ranging from -1.98% to 1.96% for bovine catalase, -0.65% to 0.76% for bovine lipase, -2.03 to 2.08% for poultry catalase, and -0.55% to 0.64% for poultry lipase) and precise (overall coefficient of variation <0.02% for bovine and poultry catalase and <0.2% for bovine and poultry lipase). Results obtained with the proposed system and reference methods were in good agreement according to the paired t-test (95% confidence level). High sampling rates (>69 h-1) and low sample/reagent consumption (<1.6 mL) were also obtained. Due to the highly efficient UAE, the proposed system can be applied for fast and accurate quantification of lipase and catalase in biological samples with low waste generation.
Collapse
Affiliation(s)
- Lucas A Siqueira
- Departamento de Química, Universidade Federal da Paraíba, 58.051-970, João Pessoa City, Paraíba State, Brazil
| | - Luciano F Almeida
- Departamento de Química, Universidade Federal da Paraíba, 58.051-970, João Pessoa City, Paraíba State, Brazil
| | | | - Mario Cesar U Araújo
- Departamento de Química, Universidade Federal da Paraíba, 58.051-970, João Pessoa City, Paraíba State, Brazil
| | - Ricardo Alexandre C Lima
- Departamento de Química, Universidade Federal da Paraíba, 58.051-970, João Pessoa City, Paraíba State, Brazil.
| |
Collapse
|
4
|
Siqueira LA, Nunes IS, Almeida Junior PL, Lyra WS, Andrade RA, Araújo MCU, Almeida LF, Lima RAC. Accurate automatic titration procedure for low sharpness and dichroism in end point detection using digital movies as detection technique. Microchem J 2017. [DOI: 10.1016/j.microc.2017.04.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
5
|
Cunha FAS, Pereira ASG, Fernandes JPA, Lyra WS, Araújo MCU, Almeida LF. Automated Single-Phase Liquid-Liquid Extraction for Determination of Cr(VI) Using Graphite Furnace Atomic Absorption Spectrophotometry without Wet Digestion of Samples. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0651-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
6
|
Basso FG, Turrioni APS, Almeida LF, Soares DG, Oliveira CF, Hebling J, de Souza Costa CA. Nutritional deprivation and LPS exposure as feasible methods for induction of cellular - A methodology to validate for vitro photobiomodulation studies. J Photochem Photobiol B 2016; 159:205-10. [PMID: 27085052 DOI: 10.1016/j.jphotobiol.2016.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 04/03/2016] [Indexed: 12/19/2022]
Abstract
Previous studies have demonstrated that high biostimulation takes place when cells under stress are subjected to phototherapy by laser or light-emitting-diode (LED) devices. Several studies selected nutritional deprivation by reducing the concentration of fetal bovine serum (FBS) in the culture medium or the exposure of cultured cells to lipopolysaccharide (LPS) as an in vitro cellular stress condition. However, there are no data certifying that these stimuli cause stressful conditions for cultured cells. This investigation assessed the induction of cellular stress by decreasing the concentration of FBS or adding LPS to culture medium. Odontoblast-like cells (MDPC-23) were cultured in complete culture medium (DMEM) containing 10% FBS. After a 12-hour incubation period, the DMEM was replaced by fresh medium containing 10% FBS (control), low concentrations of FBS (0, 0.2, 0.5, 2, or 5%) or LPS from Escherichia coli (10μg/ml). After an additional 12-hour incubation, cell viability, total cell-counting, total protein production, and gene expression of heat shock protein 70 (HSP70) were assessed. Data were statistically analyzed by ANOVA complemented by the Tukey test, with 5% considered significant. Cell viability was negatively affected only for 0% FBS, while reduced viable cell numbers and total protein production were detected for FBS concentrations lower than 2%. Higher HSP70 gene expression was also observed for FBS concentrations lower than 2% and for cells exposed to LPS. The nutritional deprivation model with culture medium lower than 2% of FBS can be safely used to induce cellular stress for in vitro photobiomodulation studies.
Collapse
Affiliation(s)
- F G Basso
- Araraquara School of Dentistry - Univ. Estadual Paulista, Araraquara, SP, Brazil
| | - A P S Turrioni
- Araraquara School of Dentistry - Univ. Estadual Paulista, Araraquara, SP, Brazil
| | - L F Almeida
- Araraquara School of Dentistry - Univ. Estadual Paulista, Araraquara, SP, Brazil
| | - D G Soares
- Araraquara School of Dentistry - Univ. Estadual Paulista, Araraquara, SP, Brazil
| | - C F Oliveira
- Universidade de Ribeirão Preto, UNAERP - Ribeirão Preto, SP, Brazil
| | - J Hebling
- Araraquara School of Dentistry - Univ. Estadual Paulista, Araraquara, SP, Brazil
| | - C A de Souza Costa
- Araraquara School of Dentistry - Univ. Estadual Paulista, Araraquara, SP, Brazil.
| |
Collapse
|
7
|
Lima RAC, Almeida LF, Lyra WS, Siqueira LA, Gaião EN, Paiva Junior SS, Lima RL. Digital movie-based on automatic titrations. Talanta 2016; 147:226-32. [DOI: 10.1016/j.talanta.2015.09.053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 09/18/2015] [Accepted: 09/21/2015] [Indexed: 10/23/2022]
|
8
|
Lima MB, Andrade SIE, Silva Neta MS, Barreto IS, Almeida LF, Araújo MCU. A Micro-Flow-Batch Analyzer using Webcam for Spectrophotometric Determination of Ortho-phosphate and Aluminium(III) in Tap Water. J BRAZIL CHEM SOC 2014. [DOI: 10.5935/0103-5053.20140059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
9
|
Lima MB, Barreto IS, Andrade SIE, Almeida LF, Araújo MCU. Using Webcam, CdTe Quantum Dots and Flow-Batch System for Automatic Spectrofluorimetric Determination ofN-Acetyl-L-cysteine in Pharmaceutical Formulations. J BRAZIL CHEM SOC 2014. [DOI: 10.5935/0103-5053.20140152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
10
|
Andrade SIE, Lima MB, Barreto IS, Lyra WS, Almeida LF, Araújo MC, Silva EC. A digital image-based flow-batch analyzer for determining Al(III) and Cr(VI) in water. Microchem J 2013. [DOI: 10.1016/j.microc.2012.03.029] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
11
|
|
12
|
Lima MB, Barreto IS, Andrade SIE, Neta MS, Almeida LF, Araújo MC. Photometric determination of phosphorus in mineralized biodiesel using a micro-flow-batch analyzer with solenoid micro-pumps. Talanta 2012; 98:118-22. [DOI: 10.1016/j.talanta.2012.06.056] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 06/21/2012] [Accepted: 06/21/2012] [Indexed: 10/28/2022]
|
13
|
Souza MC, Martins VL, Almeida LF, Neto ODP, Gaião EN, Araujo MCU. Kinetics independent spectrometric analysis using non-linear calibration modelling and exploitation of concentration gradients generated by a flow–batch system for albumin and total protein determination in blood serum. Talanta 2010; 82:1027-32. [DOI: 10.1016/j.talanta.2010.06.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Revised: 06/02/2010] [Accepted: 06/04/2010] [Indexed: 11/28/2022]
|
14
|
Visani V, Barros SRRC, Dantas Filho HA, Almeida LF, Lima RAC, Fragoso WD, Saldanha TCB, Araújo MCU. Flow-batch analyser for preparation of calibration standard mixtures in simultaneous multicomponent spectrometric analysis. Eclet Quím 2009. [DOI: 10.1590/s0100-46702009000200005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
15
|
Grünhut M, Centurión ME, Fragoso WD, Almeida LF, de Araújo MC, Band BSF. Flow-batch technique for the simultaneous enzymatic determination of levodopa and carbidopa in pharmaceuticals using PLS and successive projections algorithm. Talanta 2008; 75:950-8. [DOI: 10.1016/j.talanta.2007.12.029] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2007] [Revised: 12/18/2007] [Accepted: 12/19/2007] [Indexed: 10/22/2022]
|
16
|
da Costa RS, Santos SR, Almeida LF, Nascimento EC, Pontes MJ, Lima RA, Simões SS, Araújo MCU. A novel strategy to verification of adulteration in alcoholic beverages based on Schlieren effect measurements and chemometric techniques. Microchem J 2004. [DOI: 10.1016/j.microc.2004.03.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
17
|
Galler R, Pugachev KV, Santos CL, Ocran SW, Jabor AV, Rodrigues SG, Marchevsky RS, Freire MS, Almeida LF, Cruz AC, Yamamura AM, Rocco IM, da Rosa ES, Souza LT, Vasconcelos PF, Guirakhoo F, Monath TP. Phenotypic and molecular analyses of yellow fever 17DD vaccine viruses associated with serious adverse events in Brazil. Virology 2001; 290:309-19. [PMID: 11883195 DOI: 10.1006/viro.2001.1168] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The yellow fever (YF) 17D virus is one of the most successful vaccines developed to data. Its use has been estimated to be over 400 million doses with an excellent record of safety. In the past 3 years, yellow fever vaccination was intensified in Brazil in response to higher risk of urban outbreaks of the disease. Two fatal adverse events temporally associated with YF vaccination were reported. Both cases had features similar to yellow fever disease, including hepatitis and multiorgan failure. Two different lots of YF 17DD virus vaccine were administered to the affected patients and also to hundreds of thousands of other individuals without any other reported serious adverse events. The lots were prepared from the secondary seed, which has been in continuous use since 1984. Nucleotide sequencing revealed minor variations at some nucleotide positions between the secondary seed lot virus and the virus isolates from patients; these differences were not consistent across the isolates, represented differences in the relative amount of each nucleotide in a heterogeneous position, and did not result in amino acid substitutions. Inoculation of rhesus monkeys with the viruses isolated from the two patients by the intracerebral (ic) or intrahepatic (ih) route caused minimal viremia and no clinical signs of infection or alterations in laboratory markers. Central nervous system histological scores of rhesus monkeys inoculated ic were within the expected range, and there were no histopathological lesions in animals inoculated ih. Altogether, these results demonstrated the genetic stability and attenuated phenotype of the viruses that caused fatal illness in the two patients. Therefore, the fatal adverse events experienced by the vaccinees are related to individual, genetically determined host factors that regulate cellular susceptibility to yellow fever virus. Such increased susceptibility, resulting in clinically overt disease expression, appears to be extremely rare.
Collapse
Affiliation(s)
- R Galler
- Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, 21045-900, Rio de Janeiro, RJ, Brazil.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|