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Drumond VZ, Andrade AA, de Arruda JAA, Mesquita RA, Abreu LG. Periodontal outcomes of children and adolescents with attention deficit hyperactivity disorder: a systematic review and meta-analysis. Eur Arch Paediatr Dent 2022; 23:537-546. [PMID: 35838891 DOI: 10.1007/s40368-022-00732-8] [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: 03/04/2022] [Accepted: 06/21/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND This systematic review and meta-analysis aimed to answer the following question: Are children and adolescents with attention deficit hyperactivity disorder (ADHD) more likely to have gingival or periodontal disease-related outcomes than their non-ADHD peers? METHODS Searches were conducted in the following databases: Embase, Scopus, Web of Science, and PubMed. Google Scholar and OpenGrey were also verified. Observational studies were included in which children and adolescents with ADHD were compared with their healthy peers in terms of gingival and/or periodontal endpoints. Bias appraisal was performed using the Joann Briggs tool for case-control and cross-sectional studies. Meta-analysis was performed using R language. Results are reported as mean difference (MD) and odds ratio (OR). Statistical analyses were performed in RStudio. RESULTS A total of 149 records were identified in the searches. Seven studies were included. The meta-analysis showed that children and adolescents with ADHD had a higher mean gingival bleeding index (percentage) than their non-ADHD peers (MD = 11.25; CI = 0.08-22.41; I2 = 73%). There was no difference between groups for plaque index (MD = 4.87; CI = - 2.56 to 12.30; I2 = 63%) and gingivitis (OR = 1.42; CI = 0.22-9.21; I2 = 76%). Regarding the assessment of risk of bias, the major issue found in the articles was the absence of analyses for the control of confounding factors. CONCLUSION Children and adolescents with ADHD had more gingival bleeding than their non-ADHD peers, but no difference regarding plaque or gingivitis was detected between groups. CLINICAL REGISTRATION CRD42021258404.
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Affiliation(s)
- V Z Drumond
- School of Dentistry, Faculdade Pitágoras de Ipatinga, Ipatinga, Minas Gerais, Brazil.
| | - A A Andrade
- School of Dentistry, Faculdade Pitágoras de Belo Horizonte, Belo Horizonte, Minas Gerais, Brazil
| | - J A A de Arruda
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - R A Mesquita
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - L G Abreu
- Department of Child and Adolescent Oral Health, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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de Oliveira DBC, Silva LB, da Silva BV, Borges TC, Marques BC, Dos Santos MB, de Oliveira LF, Bolzani VS, Rodrigues ARA, Regasini LO, Andrade AA. A new acridone with antifungal properties against Candida spp. and dermatophytes, and antibiofilm activity against C. albicans. J Appl Microbiol 2019; 127:1362-1372. [PMID: 31297951 DOI: 10.1111/jam.14381] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 03/17/2019] [Revised: 07/01/2019] [Accepted: 07/04/2019] [Indexed: 12/11/2022]
Abstract
AIM The increase in the number of fungal infections worldwide, coupled with the limitations of current antifungal chemotherapy, demand the development of safe and effective new antifungals. Here, we presented the synthesis of a novel acridone (M14) and its antifungal properties against Candida and dermatophytes species. METHODS AND RESULTS A series of 17 acridones was designed, synthesized and tested for its antifungal activity. The minimum inhibitory concentration (MIC) was determined by the broth microdilution method. Only the acridone M14 showed growth-inhibitory activity against reference strains and clinical isolates of Candida and dermatophytes, with MIC range of 7·81-31·25 µg ml-1 . Moreover, M14 exhibited fungicidal activity and prevented biofilm formation by C. albicans as well as reduced the viability of preformed biofilms, even at sub-MICs. The confocal laser scanning microscopy analysis revealed that C. albicans hyphal growth was completely inhibited in the presence of M14. Similarly, there was a severe inhibition on hyphal growth of Trichophyton rubrum. We also found that M14 has relatively low toxicity to human fibroblasts. CONCLUSIONS The new acridone M14 has antifungal properties against Candida spp. and dermatophytes, and antibiofilm activity against C. albicans. In addition, M14 is relatively selective to fungal cells compared to human normal cells. SIGNIFICANCE AND IMPACT OF THE STUDY Because of its in vitro antifungal activity, anti-Candida biofilm effect and moderate cytotoxicity towards normal human cell, M14 may serve as a valuable lead compound to develop a new antifungal agent.
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Affiliation(s)
- D B C de Oliveira
- Discipline of Microbiology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
| | - L B Silva
- Discipline of Microbiology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
| | - B V da Silva
- Discipline of Microbiology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
| | - T C Borges
- Discipline of Microbiology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
| | - B C Marques
- Laboratory of Green and Medicinal Chemistry, Department of Chemistry and Environmental Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, São Paulo, Brazil
| | - M B Dos Santos
- Laboratory of Green and Medicinal Chemistry, Department of Chemistry and Environmental Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, São Paulo, Brazil
| | - L F de Oliveira
- Discipline of Physiology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
| | - V S Bolzani
- Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - A R A Rodrigues
- Discipline of Physiology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
| | - L O Regasini
- Laboratory of Green and Medicinal Chemistry, Department of Chemistry and Environmental Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, São Paulo, Brazil
| | - A A Andrade
- Discipline of Microbiology, Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
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Barreto-Vieira DF, Jácome FC, da Silva MAN, Caldas GC, de Filippis AMB, de Sequeira PC, de Souza EM, Andrade AA, Manso PPDA, Trindade GF, Lima SMB, Barth OM. Structural investigation of C6/36 and Vero cell cultures infected with a Brazilian Zika virus. PLoS One 2017; 12:e0184397. [PMID: 28898286 PMCID: PMC5595330 DOI: 10.1371/journal.pone.0184397] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 08/23/2017] [Indexed: 12/22/2022] Open
Abstract
Zika virus (ZIKV) is a member of the flavivirus genus, and its genome is approximately 10.8 kilobases of positive-strand RNA enclosed in a capsid and surrounded by a membrane. Studies on the replication dynamics of ZIKV are scarce, which limits the development of antiviral agents and vaccines directed against ZIKV. In this study, Aedes albopictus mosquito lineage cells (C6/36 cells) and African green monkey kidney epithelial cells (Vero cells) were inoculated with a ZIKV sample isolated from a Brazilian patient, and the infection was characterized by immunofluorescence staining, phase contrast light microscopy, transmission electron microscopy and real-time RT-PCR. The infection was observed in both cell lineages, and ZIKV particles were observed inside lysosomes, the rough endoplasmic reticulum and viroplasm-like structures. The susceptibility of C6/36 and Vero cells to ZIKV infection was demonstrated. Moreover, this study showed that part of the replicative cycle may occur within viroplasm-like structures, which has not been previously demonstrated in other flaviviruses.
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Affiliation(s)
- Debora Ferreira Barreto-Vieira
- Laboratory of Morphology and Viral Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, Rio de Janeiro, RJ, Brazil
| | - Fernanda Cunha Jácome
- Laboratory of Morphology and Viral Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, Rio de Janeiro, RJ, Brazil
| | - Marcos Alexandre Nunes da Silva
- Laboratory of Morphology and Viral Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, Rio de Janeiro, RJ, Brazil
| | - Gabriela Cardoso Caldas
- Laboratory of Morphology and Viral Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, Rio de Janeiro, RJ, Brazil
| | | | | | - Elen Mello de Souza
- Laboratory of Morphology and Viral Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, Rio de Janeiro, RJ, Brazil
| | - Audrien Alves Andrade
- Laboratory of Morphology and Viral Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, Rio de Janeiro, RJ, Brazil
| | | | - Gisela Freitas Trindade
- Laboratory of Virological Technology, Bio-Manguinhos, Avenida Brasil, Rio de Janeiro, RJ, Brazil
| | | | - Ortrud Monika Barth
- Laboratory of Morphology and Viral Morphogenesis, Instituto Oswaldo Cruz, Fiocruz, Avenida Brasil, Rio de Janeiro, RJ, Brazil
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Cruz RA, Filadelpho MC, Castro MPP, Andrade AA, Souza CMM, Catunda T. Very low optical absorptions and analyte concentrations in water measured by Optimized Thermal Lens Spectrometry. Talanta 2011; 85:850-8. [DOI: 10.1016/j.talanta.2011.04.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Revised: 04/05/2011] [Accepted: 04/06/2011] [Indexed: 10/18/2022]
Affiliation(s)
- R A Cruz
- Institute of Physics of São Carlos, University of São Paulo, São Carlos, C.P. 369, Brazil
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Sampaio JA, Filadelpho MC, Andrade AA, Rohling JH, Medina AN, Bento AC, da Silva LM, Gandra FCG, Nunes LAO, Baesso ML. Study on the observation of Eu2+ and Eu3+ valence states in low silica calcium aluminosilicate glasses. J Phys Condens Matter 2010; 22:055601. [PMID: 21386346 DOI: 10.1088/0953-8984/22/5/055601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The optical, magnetic and structural properties of Eu doped low silica calcium aluminosilicate glasses were investigated. The optical absorption coefficient presented two bands at 39,246 and 29,416 cm(-1), which were assigned respectively to the [Formula in text], and [Formula in text] transitions of Eu(2+). The fluorescence measured at 300 K on a sample doped with 0.5 wt% of Eu(2)O(3) exhibited a broad band centered at 17,350 cm(-1), which is attributed to the [Formula in text] transition of Eu(2+), whereas the additional peaks are due to the [Formula in text] transitions of Eu(3+). From magnetization and XANES data it was possible to evaluate the fractions of Eu(2+) and Eu(3+) for the sample doped with 0.5 and 5.0 wt% of Eu(2)O(3), the values of which were approximately 30 and 70%, respectively.
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Affiliation(s)
- J A Sampaio
- Laboratório de Ciências Físicas, Universidade Estadual do Norte Fluminense, Avenida Alberto Lamego 2000, CEP 28013-600, Campos dos Goytacazes, RJ, Brazil.
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Andrade AA, Glória PM, d'Angelo JVH, Perissotto DO, Lima RA. Evaluation of white water reuse in the bleaching process for reducing fresh water consumption. Water Sci Technol 2007; 55:199-204. [PMID: 17486852 DOI: 10.2166/wst.2007.229] [Citation(s) in RCA: 1] [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: 05/15/2023]
Abstract
The main objective of this work is to study the technical viability of using the effluent generated in paper machines (white water) in the wash presses of the bleaching stage, reducing fresh water consumption. As a case study, the industrial process of Ripasa S.A. Celulose e Papel was evaluated. White water rate is about 700 m3/h and it is not possible to reuse all this volume in the bleaching stage without causing operational problems (fouling in tubes and clogging in the screens). A mass balance of the bleaching unit was developed in an electronic spreadsheet in order to evaluate the possibility of reducing fresh water consumption, using only a fraction of the available white water in the wash presses. To achieve this objective some physical-chemistry properties of the white water stream and of other streams of the process were determined. The maximum concentration of some non-process elements (Si, Ca, Mn and Fe), which could accumulate in the process, were determined in order to establish some parameters to allow process integration of the streams involved, considering operational constraints. The results obtained have shown that it is possible to reduce approximately by 13% the consumption of fresh water and this methodology has been satisfactory.
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Affiliation(s)
- A A Andrade
- Department of Chemical Systems Engineering, School of Chemical Engineering, State University of Campinas-Unicamp, Rua Albert Einstein, 500, Barão Geraldo, Campinas, SP, 13083-052, Brazil.
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de Magalhães JC, Andrade AA, Silva PN, Sousa LP, Ropert C, Ferreira PC, Kroon EG, Gazzinelli RT, Bonjardim CA. A mitogenic signal triggered at an early stage of vaccinia virus infection: implication of MEK/ERK and protein kinase A in virus multiplication. J Biol Chem 2001; 276:38353-60. [PMID: 11459835 DOI: 10.1074/jbc.m100183200] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.7] [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: 12/11/2022] Open
Abstract
Vaccinia virus (VV) triggers a mitogenic signal at an early stage of infection. VV-induced proto-oncogene c-fos mRNA with kinetics paralleling that stimulated by serum. The VV virokine, or vaccinia virus growth factor (VGF), was not crucial for c-fos induction because it was observed upon infection with the virokine-minus mutant VV (VGF(-)). Furthermore, c-fos expression did not require infectious virus particles, as it occurred even with UV-inactivated VV and was equally induced by the different multiplicities of infection, i.e. 1.0, 5.0, and 25.0. c-fos expression was preceded by VV-induced DNA binding activity and was mediated via the cis-acting elements serum response element (SRE), activating protein-1 (AP-1), and cAMP-response element (CRE). VV activated the protein kinases p42MAPK/ERK2 and p44MAPK/ERK1 and the transcription factor ATF1 in a time-dependent manner with kinetics that paralleled those of VV-stimulated DNA-protein complex formation. The mitogenic signal transmission pathways leading to c-fos activation upon VV infection were apparently mediated by the protein kinases MEK, ERK, and PKA. This assumption was based on the findings that: 1) c-fos transcript was down-regulated; 2) the SRE, AP-1, and CRE binding activities were significantly reduced; and 3) the activation of p42MAPK/ERK2, p44MAPK/ERK1, and ATF1 were drastically affected when the viral infections were carried out in the presence of specific protein kinase inhibitor. Moreover, the mutant VV (VGF(-)) was also able to activate ERK1/2. It is noteworthy that virus multiplication was equally affected by the same kinase inhibitors. Taken together, our data provide evidence that the early mitogenic signal triggered upon VV infection relies upon the activation of the protein kinases MEK, ERK, and PKA, which are needed for both signal transduction and virus multiplication.
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Affiliation(s)
- J C de Magalhães
- Laboratório de Virus-Grupo de Transdução de Sinal, Departamento de Microbiologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Gkonos PJ, Ashby MH, Andrade AA. Vasoactive intestinal peptide stimulates prostate-specific antigen secretion by LNCaP prostate cancer cells. Regul Pept 1996; 65:153-7. [PMID: 8884983 DOI: 10.1016/0167-0115(96)00086-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The secretion of prostate-specific antigen (PSA) by prostate cancer provides an important tool in the diagnosis and management of this disorder. While androgens are required for PSA synthesis, the neuroendocrine regulation of PSA secretion is less understood. Human prostate is extensively innervated with vasoactive intestinal peptide (VIP)-containing neurons, while both normal and malignant prostate cells contain VIP receptors. Therefore, we investigated the effects of VIP on PSA secretion by LNCaP prostate cancer cells. We found that 1-4-h VIP treatment produces 60-100% increases in PSA secretion by LNCaP cells. Increases in PSA secretion were seen with as little as 10(-10) M VIP with maximum effects at 10(-7) M. The predominant acute effect of VIP was to increase the secretion of stored PSA without increasing PSA mRNA. VIP's effect on PSA secretion involved the production of intracellular cAMP since all doses of VIP which increased secretion were associated with increased cyclic AMP and since dibutyryl-cyclic AMP treatment increased secretion similarly to VIP. These results suggest that VIP regulates PSA secretion by prostate cancer cells and also suggest a role for VIP to regulate PSA secretion by normal prostate epithelial cells.
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Affiliation(s)
- P J Gkonos
- Geriatric Research, Education, and Clinical Center, Miami VA Medical Center, FL 33101, USA
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Abstract
Exposing dichromated gelatin holograms to microwave radiation considerably increases their resistance to heating, either for wide or narrowband holograms. No wavelength shift was observed for the former and only a small shift was observed for the latter. This behavior can be explained in the framework of Chang's models, taking into account the effects of microwaves on polar molecules and the potential positions of the water molecules within the medium. These results and their interpretation suggest further experiments to measure the different environments of the water molecules inside the gelatin and to use microwaves at the resonance frequencies of the water.
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