1
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Santos AF, Lopes DV, Alvarenga P, Gando-Ferreira LM, Quina MJ. Phosphorus removal from urban wastewater through adsorption using biogenic calcium carbonate. J Environ Manage 2024; 351:119875. [PMID: 38157581 DOI: 10.1016/j.jenvman.2023.119875] [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: 09/04/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024]
Abstract
Phosphorus (P) removal from urban wastewater is increasingly relevant in the wastewater treatment sector. The present work aims to contribute to the study of the adsorption process as a P removal technology. Biogenic calcium carbonate from industrial eggshell waste prepared by milling and calcination was used as an adsorbent. Batch adsorption experiments were conducted using real wastewater with 40 mg P/L (orthophosphate), original pH 7.33, under stirring conditions (100 rpm). The adsorbent was characterized using SEM-EDS, XRD, and FTIR-ATR before and after adsorption. From an initial screening of calcination times (15, 30, 60, and 120 min) and considering a balance between P removal and energy saving, the adsorbent selected was eggshell calcined at 700 °C for 60 min. The Langmuir isotherms describe the experimental data with a maximum adsorption capacity of 4.57 mg P/g at 25 °C. The adsorption process reached equilibrium within 120 min for different dosages (5, 10, and 20 g/L at 25 °C). Batch experiments showed that SO42-, at a concentration of 2689 mg/L reduced the P adsorption selectivity for dosages ≤10 g/L at 25 °C. Characterization of the loaded adsorbent shows that P adsorption from real wastewater is mostly electrostatic attraction, with the contribution of ligand exchange and microprecipitation. The adsorption capacity and behavior of the selected adsorbent seem promising for P removal from urban wastewater compared with other low-cost adsorbents.
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Affiliation(s)
- Andreia F Santos
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, 3030-790, Coimbra, Portugal.
| | - Daniela V Lopes
- Department of Materials and Ceramic Engineering, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Paula Alvarenga
- LEAF, School of Agriculture, University of Lisbon, Tapada da Ajuda, 1349-017, Lisboa, Portugal
| | - Licínio M Gando-Ferreira
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, 3030-790, Coimbra, Portugal
| | - Margarida J Quina
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, 3030-790, Coimbra, Portugal
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2
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Pascal M, Edelman SM, Nopp A, Möbs C, Geilenkeuser WJ, Knol EF, Ebo DG, Mertens C, Shamji MH, Santos AF, Patil S, Eberlein B, Mayorga C, Hoffmann HJ. EAACI task force report: A consensus protocol for the basophil activation test for collaboration and external quality assurance. Allergy 2024; 79:290-293. [PMID: 37795777 PMCID: PMC10843141 DOI: 10.1111/all.15907] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/18/2023] [Accepted: 09/25/2023] [Indexed: 10/06/2023]
Affiliation(s)
- M Pascal
- Immunology Department, Centre de Diagnòstic Biomèdic, Hospital Clínic de Barcelona, Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
- RETICS Asma reacciones adversas y alérgicas (ARADYAL) and RICORS Red De Enfermedades Inflamatorias (REI), Madrid, Spain
| | - S M Edelman
- Skin and Allergy Hospital, Helsinki University Central Hospital, Helsinki, Finland
| | - A Nopp
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, and Sachs´ Children and Youth Hospital, Stockholm, Sweden
| | - C Möbs
- Department of Dermatology and Allergology, Philipps-Universität Marburg, Marburg, Germany
| | | | - E F Knol
- Center of Translational Immunology and Dermatology/Allergology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - D G Ebo
- Faculty of Medicine and Health Sciences, Department of Immunology-Allergology- Rheumatology, University of Antwerp, Antwerp, Belgium
| | - C Mertens
- Faculty of Medicine and Health Sciences, Department of Immunology-Allergology- Rheumatology, University of Antwerp, Antwerp, Belgium
| | - M H Shamji
- National Heart and Lung Institute, Imperial College London, London, UK
- NIHR Imperial Biomedical Research Centre, London, UK
| | - A F Santos
- Department of Women and Children's Health (Pediatric Allergy) & Peter Gorer Department of Immunobiology, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
- Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, United Kingdom
| | - S Patil
- Division of Allergy and Immunology, Departments of Medicine and Pediatrics, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - B Eberlein
- Department of Dermatology and Allergy Biederstein, School of Medicine, Technical University Munich, Munich, Germany
| | - C Mayorga
- RETICS Asma reacciones adversas y alérgicas (ARADYAL) and RICORS Red De Enfermedades Inflamatorias (REI), Madrid, Spain
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga and Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA-BIONAND, Málaga, Spain
| | - H J Hoffmann
- Department of Clinical Medicine, Aarhus University, Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
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3
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Fonseca SA, Cunha AL, Lima FCA, Silva MSCE, Silva KWL, Araújo MV, Moreira MSA, Bento ES, Sabino AR, Rocha TJM, Ferreira RCS, Costa JGD, Santos AF, Santana AEG. Molecular docking studies and evaluation of the antiretroviral activity and cytotoxicity of the species Lafoensia pacari Saint-Hilaire. BRAZ J BIOL 2022; 82:e256261. [PMID: 35894349 DOI: 10.1590/1519-6984.256261] [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] [Received: 09/11/2021] [Accepted: 03/29/2022] [Indexed: 11/22/2022] Open
Abstract
Interest in antiviral plant species has grown exponentially and some have been reported to have anti-HIV properties. This research aims to perform the bio-guided phytochemical fractionation by antiretroviral activity of Lafoensia pacari stem barks. This in vitro experimental study involved the preparation of plant material, obtention of ethanolic extract, fractionation, purification, identification and quantification of fractions, acid-base extraction, nuclear magnetic resonance, HIV-1 RT inhibition test and molecular docking studies. From the bio-guided fractionation by the antiretroviral activity there was a higher activity in the acetanolic subfractions, highlighting the acetate subfraction - neutrals with 60.98% of RT inhibition and ellagic acid with 88.61% of RT inhibition and absence of cytotoxicity. The macrophage lineage cytotoxicity assay showed that the chloroform fraction was more toxic than the acetate fraction. The analysis of the J-resolved spectrum in the aromatic region showed a singlet at 7.48 and 6.93 ppm which was identified as ellagic acid and gallic acid, respectively. The 5TIQ enzyme obtained better affinity parameter with the ellagic acid ligand, which was confirmed by the HSQC-1H-13C spectra. Gallic acid was also favorable to form interaction with the 5TIQ enzyme, being confirmed through the HSQC-1H-13C spectrum. From the PreADMET evaluation it was found that ellagic acid is a promising molecule for its RT inhibition activity and pharmacokinetic and toxicity parameters.
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Affiliation(s)
- S A Fonseca
- Universidade Federal de Alagoas, Instituto de Química e Biotecnologia, Maceió, AL, Brasil
| | - A L Cunha
- Universidade Federal de Alagoas, Instituto de Química e Biotecnologia, Maceió, AL, Brasil
| | - F C A Lima
- Universidade Estadual do Piauí - UESPI, Departamento de Química, Curso de Licenciatura Plena em Química, Laboratório de Quântica Computacional & Planejamento de Fármaco, Teresina, PI, Brasil
| | - M S Cruz E Silva
- Universidade Estadual do Piauí - UESPI, Departamento de Química, Curso de Licenciatura Plena em Química, Laboratório de Quântica Computacional & Planejamento de Fármaco, Teresina, PI, Brasil
| | - K W L Silva
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - M V Araújo
- Universidade Federal de Alagoas, Instituto de Ciências Biológicas, Maceió, AL, Brasil
| | - M S A Moreira
- Universidade Federal de Alagoas, Instituto de Ciências Biológicas, Maceió, AL, Brasil
| | - E S Bento
- Universidade Federal de Alagoas, Instituto de Química e Biotecnologia, Maceió, AL, Brasil
| | - A R Sabino
- Universidade Federal de Alagoas, Instituto de Química e Biotecnologia, Maceió, AL, Brasil
| | - T J M Rocha
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Ciências da Saúde de Alagoas, Núcleo de Ciências Biológicas, Maceió, AL, Brasil
| | - R C S Ferreira
- Universidade Federal de Alagoas, Laboratório de Farmacologia Antiviral e Celular, Maceió, AL, Brasil
| | - J G da Costa
- Embrapa Tabuleiros Costeiros (UEP-Rio Largo), Rio Largo, AL, Brasil
| | - A F Santos
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Alagoas, Arapiraca, AL, Brasil
| | - A E G Santana
- Universidade Federal de Alagoas, Centro de Ciências Agrárias, Rio Largo, AL, Brasil
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4
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Santos AF, Almeida PV, Alvarenga P, Gando-Ferreira LM, Quina MJ. From wastewater to fertilizer products: Alternative paths to mitigate phosphorus demand in European countries. Chemosphere 2021; 284:131258. [PMID: 34225107 DOI: 10.1016/j.chemosphere.2021.131258] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 11/30/2020] [Revised: 05/20/2021] [Accepted: 06/15/2021] [Indexed: 05/09/2023]
Abstract
Phosphorus (P) is a non-renewable resource, irreplaceable for life and food production, and currently considered a Critical Raw Material to the European Union (EU). Due to concerns about the rate of consumption and limited reserves in countries with sensitive geopolitical contexts, it is urgent to recover P from urban and industrial flows. Indeed, the municipal wastewater treatment plants (WWTP) are considered relevant sources with several hot spots, especially sewage sludge with estimated recovery efficiencies of >80%. The most promising recovery strategies are based on thermal treatments (e.g., incineration of sludge) following by wet-chemical or thermo-chemical leaching, precipitation, and adsorption. The direct application of sludge on soil is no longer a primary route for P reintegration in the value-chain for countries as Switzerland, Germany, and The Netherlands. In fact, Switzerland and Austria paved the way for implementing P recovery legislation, focusing on recovery from raw sewage sludge or ashes. Indeed, industrial technologies with sludge ash as input show high recovery efficiencies (Ashdec® and Leachphos® with 98 and 79%) and lower environmental impacts, whereas Pearl® technology has about 12% recovery efficiency with wastewater as input. After all, struvite emerges as the most recovered product with recent access to the internal market of EU fertilisers and similar growth performance compared to triple-super-phosphate. However, several studies leave open the possibility of introducing loaded adsorbents with P as soil amendments as a new alternative to conventional desorption. Briefly, P recovery should be a compromise between efficiency, environmental impacts, and economic revenues from the final products.
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Affiliation(s)
- Andreia F Santos
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal.
| | - Patrícia V Almeida
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal
| | - Paula Alvarenga
- LEAF, School of Agriculture, University of Lisbon, Tapada da Ajuda, 1349-017, Lisboa, Portugal
| | - Licínio M Gando-Ferreira
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal
| | - Margarida J Quina
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal
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5
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Vasconcelos KMCSG, Costa JG, Pavão JMSJ, Fonseca SA, Miranda PRB, Matos-Rocha TJ, Freitas JD, Sousa JS, Melo ISV, Santos AF. Evaluation of nutritional composition of flour residue of mangaba processing. BRAZ J BIOL 2021; 83:e248931. [PMID: 34706026 DOI: 10.1590/1519-6984.248931] [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] [Received: 02/19/2021] [Accepted: 06/10/2021] [Indexed: 11/22/2022] Open
Abstract
Among several fruits, mangaba (Hancornia speciosa Gomes), it aroused the interest of producers and consumers due to its attractive sensory characteristics and health beneficial properties (high nutritional value and presence of bioactive substances), thus, this work evaluates the nutritional factors of the flour residue of mangaba processing that is despised by the food industry, and the influence of temperature on its production. The mangaba processing residue was splited in two main groups: in natura sample (control), and other for preparation of flour that was dried at 50 °C and divided into two other groups: treatment A (flour with roasts at 110 °C and 130 °C) and treatment B (flour from drying at 50 °C). The nutritional characteristics of flours were analyzed considering the chemical parameters: pH, titratable total acidity and soluble solids, in addition to the determination of moisture content, total lipids, total dietary fiber and ash, total energy value, antioxidant activity, phytochemical screening, quantification of phenolic compounds and flavonoids, as well as technological functional properties (water absorption index (WAI), water solubility index (WSI), milk absorption index (MAI) and milk solubility index (MSI) and oil absorption index (OAI). The results showed that the bioactive compounds present in the extracts do not have significant properties of acting as free radical kidnappers. The heat treatment, performed in the flour of mangaba processing residues, influenced the nutritional factors and properties of absorption and solubility, which showed statistical differences. These results show that the flour is a viable alternative for the energy enrichment of diets, contributing to the development of new products, the reduction of the disposal of these residues and consequently to the minimization of the environmental impact.
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Affiliation(s)
| | - J G Costa
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Empresa Brasileira de Pesquisa Agropecuária - Embrapa, Centro de Pesquisa Agropecuária dos Tabuleiros Costeiros, Rio Largo, AL, Brasil
| | | | - S A Fonseca
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | | | - T J Matos-Rocha
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL, Maceió, AL, Brasil
| | - J D Freitas
- Instituto Federal de Alagoas - IFAL, Maceió, AL, Brasil
| | - J S Sousa
- Instituto Federal de Alagoas - IFAL, Maceió, AL, Brasil
| | - I S V Melo
- Instituto Federal de Alagoas - IFAL, Maceió, AL, Brasil
| | - A F Santos
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Alagoas - UNEAL, Arapiraca, AL, Brasil
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6
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Neri TS, Silva KWL, Maior LPS, Oliveira-Silva SK, Azevedo PVM, Gomes DCS, Souza MA, Pavão JMSJ, Costa JG, Cunha AL, Ferreira-Júnior GC, Matos-Rocha TJ, Santos AF, Fonseca SA. Phytochemical characterization, antioxidant potential and antibacterial activity of the Croton argyrophylloides Muell. Arg. (Euphorbiaceae). BRAZ J BIOL 2021; 83:e236649. [PMID: 34669789 DOI: 10.1590/1519-6984.236649] [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] [Received: 04/15/2020] [Accepted: 06/16/2021] [Indexed: 11/22/2022] Open
Abstract
Croton argyrophylloides Muell. Arg., from the Euphorbiaceae family, popularly known as marmeleiro prateado or sacatinga, is a plant from the Caatinga biome commonly found in Brazil's northeastern region. The present study aimed to evaluate the antioxidant activity of the species. The phytochemical study was performed through qualitative analysis of chemical constituents and quantitative determination of the total phenol content through the Folin-Ciocalteu test. The qualitative and quantitative antioxidant tests were performed using the DPPH method (2.2 diphenyl-1-picryl hydrazil) and ferric reducing antioxidant power (FRAP). The minimum inhibitory concentration (MIC) was determined by microdilution in 96-well plates. The ethanolic extract of the leaves of C. argyrophylloides manifested antioxidant action in the quantitative DPPH test with a significant bioactivity of 84.70 AAO% in 500 µg/mL, with an EC50 of 236.79. The content of total phenolic compounds was 946.06 mg of gallic acid equivalents/g of sample, and total flavonoids was 58.11 mg of quercetin equivalents/g of sample, the result obtained for FRAP was 15294.44 µM Trolox/g of sample and ABTS was 718 μM Trolox of sample. The prospecting of the chemical constituents of the leaves of C. argyrophylloides revealed the presence of the main compounds that manifests the antioxidant activity and it was proven by the DPPH method that there is antioxidant activity in the analyzed sample, in addition to demonstrating a significant content of phenolic compounds and total flavonoid content in the species, which corroborates the antioxidant activity of the plant sample. The leaf extracts presented growth inhibition halos of 10 and 12 mm upon Staphylococcus aureus ATCC 25923.
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Affiliation(s)
- T S Neri
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - K W L Silva
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - L P S Maior
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | | | | | - D C S Gomes
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - M A Souza
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | | | - J G Costa
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - A L Cunha
- Universidade Federal de Alagoas - UFAL, Maceió, AL, Brasil
| | - G C Ferreira-Júnior
- Instituto Federal de Educação, Ciência e Tecnologia do Acre - IFAC, Xapuri, AC, Brasil
| | - T J Matos-Rocha
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL, Maceió, AL, Brasil
| | - A F Santos
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Alagoas - UNEAL, Arapiraca, AL, Brasil
| | - S A Fonseca
- Centro Universitário Cesmac, Maceió, AL, Brasil
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7
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Santos AF, Vaz TE, Lopes DV, Cardoso O, Quina MJ. Beneficial use of lime mud from kraft pulp industry for drying and microbiological decontamination of sewage sludge. J Environ Manage 2021; 296:113255. [PMID: 34280837 DOI: 10.1016/j.jenvman.2021.113255] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 01/30/2021] [Revised: 05/24/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
Sewage sludge (SS) is a global environmental, social, and economic problem that requires a sustainable management approach. Still, the production of other industrial wastes, such as lime mud (LM), has recently gained considerable attention to avoid landfilling. This work aims to present a new approach for converting SS and LM into value-added products within the circular economy perspective. In particular, the effect of LM and calcined lime mud (CLM) as drying adjuvants and SS sanitation agents are investigated. Two out of three SS samples show Escherichia coli contamination above the Portuguese limit established for soil application, while no Salmonella spp. was detected in the searched samples. The addition of CLM to SS in a ratio between 0.05 and 0.15 g CLM/gwb, lead to complete elimination of the microbiological contamination in almost all cases. Contrarily, the use of LM does not seem efficient to act as a sanitation agent. Both LM and CLM show a positive impact on the drying process when compared to the raw SS, increasing the drying rate, and reducing the drying time. The most favourable drying conditions to maximize the drying rate and minimize the drying time (until 30% of moisture) are 130 °C, 0.15 g adj/gwb, and 2.5 mm of plate thickness. The thermal treatment (100 and 130 °C) without adjuvants reduces the microbiological contamination below the legal limit. Overall, a beneficial effect is observed by adding CLM to SS, open the possibility of producing a safer organic soil improver.
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Affiliation(s)
- Andreia F Santos
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal.
| | - Telma E Vaz
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal
| | - Daniela V Lopes
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Olga Cardoso
- University of Coimbra, CIEPQPF, Faculty of Pharmacy, 3000-548, Coimbra, Portugal
| | - Margarida J Quina
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II, Pinhal de Marrocos, 3030-790, Coimbra, Portugal
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8
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Magalhães PKA, Araujo EN, Santos AM, Vanderlei MB, Souza CCL, Correia MS, Fonseca SA, Pavão JMJS, Souza MA, Costa JG, Santos AF, Matos-Rocha TJ. Ethnobotanical and ethnopharmacological study of medicinal plants used by a traditional community in Brazil's northeastern. BRAZ J BIOL 2021; 82:e237642. [PMID: 34105672 DOI: 10.1590/1519-6984.237642] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 10/27/2020] [Indexed: 11/21/2022] Open
Abstract
The aim of this research is to make a survey of the socio-environmental characteristics and the ethnobotanical study of medicinal plants used in a traditional community in the Brazilian Northeast, Alagoas. The study was made based on visits with the application of a questionnaire with questions related to the socio-economic element and on the diversity of plants used in herbal medicine. The research was made from March/2019 to February/2020, where families and interviewed plant exhibitors were interviewed for botanical identification. The studied community, which were 24 interviewees, was compiled by residents of the Quilombola community from Pau D'arco in Arapiraca city - Alagoas. Residents interviewed, 15 (62.5%) attended between 56 to 80 years, 11 interviewees about 46% were born in the community and 13 (54%) had a fundamentally incomplete nature. At the end, there were mentioned 30 plant species used for phytotherapeutic purposes, from which presents bigger usage as plants against arterial hypertension (Salvia rosmarinus Schleid), diabetes Mellitos (Croton heliotropiifolius Kunth), pain and inflammation (Alternanthera tenella Colla), present the biggest number of species in the community. The species cited are related to numerous medicinal uses, among which there will be predominant associations associated with cardiovascular and inflammatory processes. The tea is the main way of preparing plants. It is perceived that medicinal plants are only widely used by this Quilombola community of and growth of the crops in the backyard are considered a tradition.
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Affiliation(s)
- P K A Magalhães
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL, Maceió, AL, Brasil
| | - E N Araujo
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - A M Santos
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - M B Vanderlei
- Universidade Federal de Alagoas - UFAL, Arapiraca, AL, Brasil
| | - C C L Souza
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - M S Correia
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Instituto Federal de Alagoas - IFAL, Maceió, AL, Brasil
| | - S A Fonseca
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | | | - M A Souza
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - J G Costa
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - A F Santos
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Alagoas - UNEAL, Arapiraca, AL, Brasil
| | - T J Matos-Rocha
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL, Maceió, AL, Brasil
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9
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Santos JDO, Silva ES, Silva P, Silva MAC, Santos LA, Santos AF, Matos-Rocha TJ, Pavão JMSJ. A Physiological behavior and tolerance of Lactuca sativa to lead nitrate and silver nitrate heavy metals. BRAZ J BIOL 2021; 82:e237604. [PMID: 34105671 DOI: 10.1590/1519-6984.237604] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 12/14/2020] [Indexed: 11/22/2022] Open
Abstract
This study goal to evaluate the effects of different concentrations of lead (Pb) and silver (Ag) on germination, initial growth and anatomical alterations of Lactuca sativa L. Plants use various mechanisms to reduce the impacts caused by anthropic action, such as xenobiotic elements of soils and water contaminated by heavy metals. These metals were supplied as lead nitrate and silver nitrate and the following treatments were established: control for both metals, maximum dose of heavy metals, for arable soils, allowed by the National Council of the Environment (Ag = 25 mg. Kg-1, Pb = 180 mg. Kg-1), double (Ag = 50 mg. Kg-1, Pb = 360 mg. Kg-1) and triple (Ag = 75 mg. Kg-1, Pb = 540 mg. Kg -1) of this dosage. Vigor and germination tests of the seeds and possible anatomical changes in the leaves and roots of lettuce plants were performed. The species showed a high capacity to germinate under Pb and Ag stress, and the germination was never completely inhibited; however, the germination decreased with increasing Pb concentrations, but not under Ag stress. The use of increasing doses of metals reduced seed vigor and increased chlorophyll content. An increase in biomass was also observed in plants from treatments submitted to Pb. The phytotoxic effects of metals were more pronounced at 15 days after sowing. Anatomically, L. sativa was influenced by metal concentrations, and had a reduction of up to 79.9% in root epidermis thickness at the highest Pb concentration, although some structures did not suffer significant changes. The results suggest that L. sativa presents tolerance to high concentrations of heavy metals, showing possible mechanisms to overcome the stress caused by these metals. In this research lettuce possibly used the mechanism of exclusion of metals retaining Pb and Ag in the roots preserving the photosynthetic apparatus in the aerial part of the plants. In general, the chemical element Pb was more toxic than Ag, in these experimental conditions.
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Affiliation(s)
- J D O Santos
- Universidade Federal de Alagoas, Programa de Pós-graduação em Agricultura e Meio Ambiente, Arapiraca, AL, Brasil
| | - E S Silva
- Universidade Federal de Alagoas, Programa de Pós-graduação em Agricultura e Meio Ambiente, Arapiraca, AL, Brasil
| | - P Silva
- Universidade Federal de Alagoas, Programa de Pós-graduação em Agricultura e Meio Ambiente, Arapiraca, AL, Brasil
| | - M A C Silva
- Universidade Federal de Alagoas, Programa de Pós-graduação em Agricultura e Meio Ambiente, Arapiraca, AL, Brasil
| | - L A Santos
- Universidade Federal de Alagoas, Programa de Pós-graduação em Agricultura e Meio Ambiente, Arapiraca, AL, Brasil
| | - A F Santos
- Centro Universitário Cesmac, Programa de Pós-graduação em Análise de Sistemas Ambientais, Maceió, AL. Brasil
- Universidade Estadual de Alagoas - UNEAL, Arapiraca, AL, Brasil
| | - T J Matos-Rocha
- Centro Universitário Cesmac, Programa de Pós-graduação em Análise de Sistemas Ambientais, Maceió, AL. Brasil
- Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL, Maceió, AL, Brasil
| | - J M S J Pavão
- Centro Universitário Cesmac, Programa de Pós-graduação em Análise de Sistemas Ambientais, Maceió, AL. Brasil
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Maior LPS, Neto GJC, Azevedo PVM, Jesus LCC, Souza-Filho AN, Santos Júnior CJ, Costa JG, Souza MA, Souza EC, Ferreira-Júnior GC, Pavão JMSJ, Santos AF, Matos-Rocha TJ. Detection of enteropathogens and research of pesticide residues in Lactuca sativa from traditional and agroecological fairs. BRAZ J BIOL 2021; 82:e237839. [PMID: 34105673 DOI: 10.1590/1519-6984.237839] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 11/13/2020] [Indexed: 11/22/2022] Open
Abstract
Agroecological production represents a new reality in vegetable farming. Thus, the study aimed to search for the presence of pesticides in agroecological samples and microbiological and parasitological contamination in Lactuca sativa L. of agroecological and conventional fairs in Alagoas. Thirty-two samples were collected, a hygienic-sanitary checklist was performed, along with coliform, Salmonella spp., Staphylococcus aureus research and Gas Chromatography with Mass Spectrometer (GC-MS) for pesticide research; using two methodologies for parasitological studies. Thirty-two samples were analyzed, with a sanitary adequacy level at 45% and 38% for fairs (agroecological and conventional) respectively, with three samples (9.4%) in total, being adequate to the microbiological pattern according to RDC no. 12/2001. Among the 23 samples which were tested positive for parasites, 69.5% originated from samples extracted at conventional fairs, and 53% of every positive samples presented Entamoeba coli as the main contaminant. All together, no traces of deltamethrin were detected, but in two of the samples a peak retention for diphenoconazole was detected. In conclusion, the fairs represent an adequate environment for human pathogens and indicators. Therefore greater hygiene training of vegetable traders and consumers in the state of Alagoas is required, especially in conventional fairs, which presented more critical microbiological and parasitological indexes comparing to fairs with agroecological products; however, the presence of difenoconazole in two samples of agricultural fairs suggests accidental contamination or indiscriminate use of this chemical in the production of Lactuca sativa, however, products with agroecological origin represents a better choice for the consumers.
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Affiliation(s)
- L P S Maior
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - G J C Neto
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | | | - L C C Jesus
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | | | - C J Santos Júnior
- Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL, Maceió, AL, Brasil
| | - J G Costa
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - M A Souza
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - E C Souza
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - G C Ferreira-Júnior
- Instituto Federal de Educação, Ciência e Tecnologia do Acre - IFAC, Xapuri, AC, Brasil
| | | | - A F Santos
- Centro Universitário Cesmac, Maceió, AL, Brasil
- Universidade Estadual de Alagoas - UNEAL, Arapiraca, AL, Brasil
| | - T J Matos-Rocha
- Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL, Maceió, AL, Brasil
- Instituto Federal de Educação, Ciência e Tecnologia do Acre - IFAC, Xapuri, AC, Brasil
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11
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Gomes LA, Santos AF, Lopes RJA, Góis JC, Quina MJ. Isothermal drying kinetics of sewage sludge using weathered coal fly ash as adjuvant for agronomic application. Environ Technol 2021; 42:2267-2277. [PMID: 31791200 DOI: 10.1080/09593330.2019.1700311] [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: 09/23/2019] [Accepted: 11/26/2019] [Indexed: 06/10/2023]
Abstract
This study aims to evaluate the effect of weathered coal fly ash (CFA) as a drying adjuvant of sewage sludge (SS) to produce a soil amendment. The high amount of SS and CFA creates a complex waste management problem in many countries, requiring more research efforts. Towards a circular economy, CFA can be viewed as an anthropogenic inorganic by-product with valuable nutrients (e.g. K), which can be recovered in combination with SS (rich in organic matter, N, and P). Different temperatures (70, 85, 100, 115, and 130 °C) are tested to dry small SS cylinders, without and with 0.15 g CFA g-1 of SSwet basis (wb). By fitting appropriate models to the experimental drying curves, it is possible to observe an improvement of 1-17% in the diffusion coefficient and 7-19% in the kinetic constants, using CFA. The best drying conditions are achieved with CFA as an adjuvant at 130 °C, where the drying rate is 31.61 gH2O kg-1 SSwb min-1. Phytotoxicity and growth assays are performed to evaluate the effect of the produced materials in the soil. The product with SS and CFA shows the potential to improve soil condition due to (i) the organic matter, N, P, and K content, (ii) the lower phytotoxic effect when compared to raw SS; (iii) the soil pH correction. Thus, not only the addition of weathered CFA facilitates the drying of SS but also the final product has benefits to soil conditions.
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Affiliation(s)
- Luciano A Gomes
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Portugal
- IFB - Federal Institute of Education, Science, and Technology of Brasília - IFB, Campus Ceilândia Brasília - Federal District, Brazil
| | - Andreia F Santos
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Portugal
| | - Rui J A Lopes
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Portugal
| | - José C Góis
- Association for the Development of Industrial Aerodynamics, Department of Mechanical Engineering, University of Coimbra, Coimbra, Portugal
| | - Margarida J Quina
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, Portugal
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12
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Silva KB, Pinheiro CTS, Soares CRM, Souza MA, Matos-Rocha TJ, Fonseca SA, Pavão JMSJ, Costa JG, Pires LLS, Santos AF. Phytochemical characterization, antioxidant potential and antimicrobial activity of Averrhoa carambola L. (Oxalidaceae) against multiresistant pathogens. BRAZ J BIOL 2021; 81:509-515. [PMID: 32876163 DOI: 10.1590/1519-6984.220259] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 02/14/2020] [Indexed: 11/21/2022] Open
Abstract
The objective of this work was to perform the phytochemical characterization, to determine total phenols, antioxidant (AAO%) and antimicrobial potential of the ethanolic extracts of carambola. The phytochemical study was carried out through a qualitative analysis of the chemical constituents and quantitative determination of the phenol content By the Folin-Ciocalteu test. Qualitative and quantitative antioxidant tests were performed using the DPPH method (2,2 diphenyl-1-picryl-hydrazila) and iron reduction (FRAP). The minimum inhibitory concentration (MIC) was determined by microdilution in 96-well plates. The presence of pyrogallic tannins, steroids and saponins has been identified. The highest total phenol content, quantified in the samples, was found in the stem bark (0.0866 mgEAG/g) and in the fruit (0.0734 mgEAG/g). In the antioxidant evaluation, the extracts of the green fruit bagasse (AAO% 71.9%,) and stem bark at 50 μg/mL (AAO% 94%) with CE50 23.7 μg/mL. Leaf extracts, stem bark, ripe fruit bagasse and green fruit bagasse presented MICs of 100 μg/mL against multiresistant pathogenic bacteria and fungi.
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Affiliation(s)
- K B Silva
- Instituto de Química e Biotecnologia, Universidade Federal de Alagoas - UFAL, Av. Lourival de Melo Mota, s/n, Tabuleiro do Martins, CEP 57072-970, Maceió, AL, Brasil
| | - C T S Pinheiro
- Centro Universitário Cesmac, Rua Cônego Machado, 918, CEP 57051-160, Alagoas, AL, Brasil
| | - C R M Soares
- Centro Universitário Cesmac, Rua Cônego Machado, 918, CEP 57051-160, Alagoas, AL, Brasil
| | - M A Souza
- Centro Universitário Cesmac, Rua Cônego Machado, 918, CEP 57051-160, Alagoas, AL, Brasil
| | - T J Matos-Rocha
- Centro Universitário Cesmac, Rua Cônego Machado, 918, CEP 57051-160, Alagoas, AL, Brasil
| | - S A Fonseca
- Centro Universitário Cesmac, Rua Cônego Machado, 918, CEP 57051-160, Alagoas, AL, Brasil
| | - J M S J Pavão
- Centro Universitário Cesmac, Rua Cônego Machado, 918, CEP 57051-160, Alagoas, AL, Brasil
| | - J G Costa
- Centro Universitário Cesmac, Rua Cônego Machado, 918, CEP 57051-160, Alagoas, AL, Brasil
| | - L L S Pires
- Centro Universitário Cesmac, Rua Cônego Machado, 918, CEP 57051-160, Alagoas, AL, Brasil
| | - A F Santos
- Centro Universitário Cesmac, Rua Cônego Machado, 918, CEP 57051-160, Alagoas, AL, Brasil
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13
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Freire CJ, Santos RGA, Costa JG, Miranda PRB, Santos AF. Situational diagnosis of the popular use of medicinal plants in pediatrics. BRAZ J BIOL 2020; 81:887-898. [PMID: 33053124 DOI: 10.1590/1519-6984.230005] [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] [Received: 10/14/2019] [Accepted: 05/05/2020] [Indexed: 11/22/2022] Open
Abstract
This study aimed to describe the use of medicinal plants for the relief and treatment of pediatrics pathologies performed by parents of children registered in a Basic Health Unit. This is a cross-sectional, observational and analytical study that occurred from March until May 2016, with the participation of 176 individuals, using a semi-structured questionnaire as a research instrument. Descriptive statistics were applied for data analysis, using frequency distribution and chi-square test. Among all 177 indications of medicinal use of plants in childhood, considering the plant part and administration method, 61.6% converged with scientific data, 21.5% differed and 16.9% were new indications without a similar record in the literature. These results support the popular use of medicinal plants and show to need for greater awareness about the rational use of phytotherapy and stimulate scientific research, as they bring new elements about the therapeutic potential of different species.
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Affiliation(s)
- C J Freire
- Universidade Federal de Alagoas - UFAL, Maceió, AL, Brasil
| | - R G A Santos
- Centro Universitário Cesmac - CESMAC, Maceió, AL, Brasil
| | - J G Costa
- Empresa Brasileira de Pesquisa Agropecuária - EMBRAPA, Rio Largo, AL, Brasil
| | - P R B Miranda
- Centro Universitário Cesmac - CESMAC, Maceió, AL, Brasil
| | - A F Santos
- Centro Universitário Cesmac - CESMAC, Maceió, AL, Brasil.,Universidade Estadual de Alagoas - UNEAL, Arapiraca, AL, Brasil
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14
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Bezerra ASCE, Franco SPB, Mousinho KC, Fonseca SA, Matos-Rocha TJ, Pavão JMSJ, Santos AF. Situational diagnosis of professionals of family health units on phytotherapy. BRAZ J BIOL 2020; 81:551-556. [PMID: 33053118 DOI: 10.1590/1519-6984.224763] [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] [Received: 06/01/2019] [Accepted: 01/27/2020] [Indexed: 11/22/2022] Open
Abstract
The incorporation of the use of phytotherapy in the primary health care is an important gain for the Unified Health System, besides reducing the cost in the treatment of the patient, rescues the popular knowledge and promotes the rational use of the medicinal plants. To determine the situational diagnostic profile of professionals of family health units on phytotherapy. A quantitative observational study was carried out, in which forms were applied to the team of the family health units of the municipality of Marechal Deodoro da Fonseca/Alagoas. Only 23% of the interviewed professionals reported having had contact with scientific information on phytotherapy during professional training. All of them approve the implantation of the official practice of phytotherapy and routinely prescribe phytotherapics and medicinal plants, but they do not know the possible risks of drug interaction with the use of medicinal plants. Health professionals Health professionals support the official practice of phytotherapy in public health and show interest in participating in courses / training on the subject to better serve the population.
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Affiliation(s)
| | | | | | - S A Fonseca
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - T J Matos-Rocha
- Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL. Centro Universitário Cesmac, Maceió, AL, Brasil
| | | | - A F Santos
- Centro Universitário Cesmac, Maceió, AL, Brasil
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15
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Alves HHF, Silva AT, Pavão JMSJ, Matos-Rocha TJ, Souza MA, Costa JG, Fonseca SA, Pires LLS, Faé J, Santos AF. The acetylcholinesterase as indicative of intoxication for pesticide in farmers of conventional and organic cultivation. BRAZ J BIOL 2020; 81:632-641. [PMID: 32876158 DOI: 10.1590/1519-6984.227875] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 02/09/2020] [Indexed: 11/22/2022] Open
Abstract
In this sense the objective of assessing the levels of pesticide poisoning in rural farmers of San Sebastian and take AL, using acetylcholinesterase enzymes Erythrocyte and plasma as biological indicator of intoxication. This is a prospective, transversal and descriptive variables analyzed were: year whose, sex, age group, education, location, condition, route of exposure. The data were acquired by collecting blood samples and socio demographic information of farmers. Was put as the determining factor the type of conventional and organic farming, and periods of drought and rainy. 56 volunteers were analyzed. The analyses were performed in the automatic biochemical Analyzer Cobas Integra 400 plus®. According to the results of the analyses, it was the largest number of individuals with reduced values of cholinesterase, specifically the Group of conventional farming, the period of greatest change index was in the rainy season, where the activity of AChE, expressive values presented in the city of São Sebastião, with 80% result of intoxicated, in the city of the foot - take, 21.73% over the same period. On analysis of the AChP, São Sebastião has obtained the highest number of contaminated with 18.75% and 30% respectively, in the District Take Foot stood between 10 and 21.73% of reduced levels of cholinesterase. This sets the organic system of cultivation, as the best alternative for prevention of future diseases, in addition to bringing quality of life for rural workers, as well as for consumers.
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Affiliation(s)
- H H F Alves
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - A T Silva
- Universidade Estadual de Alagoas - UNEAL, Arapiraca, AL, Brasil
| | | | | | - M A Souza
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - J G Costa
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - S A Fonseca
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - L L S Pires
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - J Faé
- Universidade Estadual de Alagoas - UNEAL, Arapiraca, AL, Brasil
| | - A F Santos
- Centro Universitário Cesmac, Maceió, AL, Brasil
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Gomes LA, Santos AF, Góis JC, Quina MJ. Thermal dehydration of urban biosolids with green liquor dregs from pulp and paper mill. J Environ Manage 2020; 261:109944. [PMID: 32148252 DOI: 10.1016/j.jenvman.2019.109944] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 07/10/2019] [Revised: 11/19/2019] [Accepted: 11/28/2019] [Indexed: 06/10/2023]
Abstract
This study aims to investigate the sewage sludge (SS) drying process by incorporating a by-product formed in the pulp and paper industry (green liquor dregs - GLD) as drying adjuvant. Through an innovative approach, the drying kinetics was modelled, and the final dried product was tested for soil applications. After the characterization phase, small cylinders of SS without and with 0.15 g GLD g SS-1wb (SS_GLD) were dried in isothermal conditions at 70, 100, and 130 °C. The experimental data were fitted by Fick's second law and thin-layer models, and good results were achieved in both cases (R2 > 0.98 and RMSE <0.05). Although only a slight improvement was observed, the best conditions for drying biosolids were found with the addition of GLD at 130 °C, where the drying rate was 30.88 gH2O kg-1 SSwb min-1. In this condition, a decrease of 8% in the energy required for moisture evaporation was observed. Regarding the phytotoxicity tests with Lepidium sativum L. (garden cress), 60% improvement in EC50 was noticed for the sample with GLD when compared to the raw SS. The dried product SS_GLD complied with the regulations for soil applications regarding the potentially toxic metals (Cr, Ni, Cu, Pb, Zn, and Cd), and promoted an increase in soil organic matter and pH. However, further and in-depth studies should be conducted to assess the potential of SS_GLD application in agricultural soil.
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Affiliation(s)
- Luciano A Gomes
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal; IFB - Federal Institute of Education, Science, and Technology of Brasília - IFB, Campus Ceilândia Brasília - Federal District, Brazil.
| | - Andreia F Santos
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal
| | - José C Góis
- Association for the Development of Industrial Aerodynamics, Department of Mechanical Engineering, University of Coimbra, Coimbra, Portugal
| | - Margarida J Quina
- CIEPQPF - Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, Rua Silvio Lima, 3030-790, Coimbra, Portugal
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17
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F. Santos A, P. Santos C, M. Matos A, Cardoso O, J. Quina M. Effect of Thermal Drying and Chemical Treatments with Wastes on Microbiological Contamination Indicators in Sewage Sludge. Microorganisms 2020; 8:microorganisms8030376. [PMID: 32155983 PMCID: PMC7142961 DOI: 10.3390/microorganisms8030376] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/03/2020] [Accepted: 03/05/2020] [Indexed: 11/16/2022] Open
Abstract
This work aims to evaluate the microbiological contamination of sewage sludge (SS) collected in urban wastewater treatment plants (WWTP) from Portugal. Two types of SS were considered: urban mixed (UM) and from anaerobic digestion (AD). The two types of samples were characterized in relation to the main physical and chemical parameters, as well as the microbiological contamination (Escherichia coli and Salmonella spp). Then, sanitation tests were conducted through thermal drying and chemical treatments. Towards a circular economy, industrial alkaline wastes (green liquor dregs - GLD, lime mud, coal fly ash, eggshell) were tested as alternatives to lime. Only six out of nineteen samples complied with the legal limits for both microorganisms. However, drying at 130 °C sanitized selected samples below the E. coli limit, regardless of the initial moisture or contamination. Additionally, CaO (obtained from eggshell) led to the complete elimination of E. coli at any dosage studied (0.05–0.15 g/g SSwet basis). GLD evidenced the ability to reduce E. coli contamination at room temperature, but not enough to comply with the legal limit. In general, this work highlights the need to sanitize the SS before its application to the soil, and the positive role of some wastes on this goal.
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Affiliation(s)
- Andreia F. Santos
- CIEPQPF-Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, 3030-790 Coimbra, Portugal; (C.P.S.); (M.J.Q.)
- Correspondence:
| | - Cátia P. Santos
- CIEPQPF-Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, 3030-790 Coimbra, Portugal; (C.P.S.); (M.J.Q.)
| | - Ana M. Matos
- CIEPQPF-Centre of Chemical Processes Engineering and Forest Products, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; (A.M.M.); (O.C.)
| | - Olga Cardoso
- CIEPQPF-Centre of Chemical Processes Engineering and Forest Products, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; (A.M.M.); (O.C.)
| | - Margarida J. Quina
- CIEPQPF-Centre of Chemical Processes Engineering and Forest Products, Department of Chemical Engineering, University of Coimbra, 3030-790 Coimbra, Portugal; (C.P.S.); (M.J.Q.)
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18
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Matos-Rocha TJ, Cavalcanti MGS, Veras DL, Santos AF, Freitas CFD, Suassuna ASCL, Melo ESD, Barbosa-Filho JM, Alves LC, Santos FABD. In vivo effect of essential oil of Mentha x villosa and its active compound against Schistosoma mansoni (Sambon, 1907). BRAZ J BIOL 2019; 80:582-588. [PMID: 31691742 DOI: 10.1590/1519-6984.216607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 03/12/2019] [Indexed: 11/22/2022] Open
Abstract
Schistosomiasis treatment is dependent on a single drug, praziquantel (PZQ). The development of resistance of PZQ has drawn the attention of many researchers to alternative drugs. One viable and promising treatment is the study of medicinal plants as a new approach to the experimental treatment for Schistosomiasis. The present work aimed to evaluate in vivo antischistosomal activity of effect of Mentha x villosa Oil Essential (Mv-EO) and rotundifolone (ROT) against Schistosoma mansoni. Thirty-day-old female Swiss webster mice (Mus musculus) weighing 50 grams were used. Mice were infected with 80 cercariae of S. mansoni (BH strain) and orally administered Mv-EO (50, 100 and 200 mg/Kg) and ROT (35.9, 70.9 and 141.9 mg/Kg) at 45-days post infection for 5 consecutive days. All mice were euthanized 60 days after infection. Praziquantel was the positive control in the experiment. Doses of 200 mg/kg (Mv-EO) and ROT (141.9 mg/Kg) resulted in a significant reduction in fluke burden (72.44% and 74.48%, respectively). There was also marked reduction in liver, intestinal and faecal and changed oogram pattern, compared to infected untreated mice. Considering the results obtained, further biological studies are required in order to elucidate the mechanism of schistosomicidal action on against adult S. mansoni.
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Affiliation(s)
- T J Matos-Rocha
- Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, PE, Brasil
| | - M G S Cavalcanti
- Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, PE, Brasil
| | - D L Veras
- Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, PE, Brasil
| | - A F Santos
- Centro Universitário CESMAC, Programa de Pós-graduação em Análise de Sistemas Ambientais, Maceió, AL, Brasil
| | - C F de Freitas
- Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, PE, Brasil
| | | | - E S de Melo
- Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, PE, Brasil
| | | | - L C Alves
- Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, PE, Brasil
| | - F A Brayner Dos Santos
- Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, PE, Brasil
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Matos-Rocha TJ, Lima MCAD, Veras DL, Santos AF, Silva AL, Almeida Júnior ASA, Pitta-Galdino MR, Pitta IR, Pitta MGR, Alves LC, Brayner FA. In vivo study of schistosomicidal action of (Z)-1-(2-chloro-6-fluoro-benzyl)-5-thioxo-4-(2,4,6-trimethoxy-benzylidene)-imidazolidin-2-one. BRAZ J BIOL 2019; 80:187-189. [PMID: 31166369 DOI: 10.1590/1519-6984.190062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 10/28/2018] [Indexed: 11/21/2022] Open
Affiliation(s)
- T J Matos-Rocha
- Laboratório de Biologia Celular e Molecular, Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Recife, PE, Brasil.,Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco - UFPE, Recife, Pernambuco, Brasil
| | - M C Alves de Lima
- Laboratório de Planejamento e Síntese de Fármacos, Universidade Federal de Pernambuco, Recife, PE, Brasil
| | - D L Veras
- Laboratório de Biologia Celular e Molecular, Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Recife, PE, Brasil
| | - A F Santos
- Laboratório de Biologia Celular e Molecular, Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Recife, PE, Brasil
| | - A L Silva
- Laboratório de Planejamento e Síntese de Fármacos, Universidade Federal de Pernambuco, Recife, PE, Brasil
| | - A S A Almeida Júnior
- Laboratório de Planejamento e Síntese de Fármacos, Universidade Federal de Pernambuco, Recife, PE, Brasil
| | - M R Pitta-Galdino
- Laboratório de Imunomodulação e Novas Abordagens Terapêuticas, Núcleo de Pesquisa em Inovação Terapêutica Suely Galdino, Recife, PE, Brasil
| | - I R Pitta
- Laboratório de Imunomodulação e Novas Abordagens Terapêuticas, Núcleo de Pesquisa em Inovação Terapêutica Suely Galdino, Recife, PE, Brasil
| | - M G R Pitta
- Laboratório de Imunomodulação e Novas Abordagens Terapêuticas, Núcleo de Pesquisa em Inovação Terapêutica Suely Galdino, Recife, PE, Brasil
| | - L C Alves
- Laboratório de Biologia Celular e Molecular, Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Recife, PE, Brasil
| | - F A Brayner
- Laboratório de Biologia Celular e Molecular, Departamento de Parasitologia, Centro de Pesquisas Aggeu Magalhães, Recife, PE, Brasil
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20
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Santos AF, Arim AL, Lopes DV, Gando-Ferreira LM, Quina MJ. Recovery of phosphate from aqueous solutions using calcined eggshell as an eco-friendly adsorbent. J Environ Manage 2019; 238:451-459. [PMID: 30875643 DOI: 10.1016/j.jenvman.2019.03.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 11/29/2018] [Revised: 02/05/2019] [Accepted: 03/03/2019] [Indexed: 06/09/2023]
Abstract
Phosphorus scarcity has become a significant issue in the European Union (EU) during 21st Century, due to its relevance as an irreplaceable macronutrient for life, and because of the total dependency of EU regarding imports. This work aims to evaluate the phosphorus recovery by adsorption in batch and fixed-bed column, using a thermally modified eggshell as an adsorbent. The screening phase revealed that calcined eggshell at 700 °C (CES700) is the most suitable material compared with the other thermally modified eggshells tested. Thus, CES700 was characterized regarding the specific surface area, pore volume, zero-point charge pH, total dissolved solids and organic matter. The influence of pH and adsorbent dosage was investigated in batch conditions. Langmuir-Freundlich model described the equilibrium data and the maximum adsorption capacity was about 39 mg P-PO4/g. The kinetics follows a pseudo-first order model, with constants between 0.063 and 0.224 min-1. Fixed-bed studies indicated that increasing fluid superficial velocity and feed concentration led to an early saturation of the adsorbent. Yoon-Nelson, Thomas and Bohard-Adams empirical models properly adjusted the breakthrough curves with R2 ≥ 0.98. Germination tests using CES700 loaded with phosphate revealed a germination index of 120 and 124% to 48 and 72 h, respectively. CES700 is statically better than the other tested materials, which opens the possibility of its use as fertilizer. This study showed that the developed material, CES700, can be applied in batch or fixed-bed processes to recover phosphate ions from liquid effluents, and the loaded adsorbent has potential to be further used as fertilizer.
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Affiliation(s)
- Andreia F Santos
- CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Pólo II, Rua Sílvio Lima, 3030-790, Coimbra, Portugal
| | - Aline L Arim
- CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Pólo II, Rua Sílvio Lima, 3030-790, Coimbra, Portugal; UNIPAMPA, Federal University of Pampa, Campus Bagé, RS, Brazil
| | - Daniela V Lopes
- CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Pólo II, Rua Sílvio Lima, 3030-790, Coimbra, Portugal; CICECO, Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Licínio M Gando-Ferreira
- CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Pólo II, Rua Sílvio Lima, 3030-790, Coimbra, Portugal
| | - Margarida J Quina
- CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, Pólo II, Rua Sílvio Lima, 3030-790, Coimbra, Portugal.
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21
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Silva FRG, Matias TMS, Souza LIO, Matos-Rocha TJ, Fonseca SA, Mousinho KC, Santos AF. Phytochemical screening and in vitro antibacterial, antifungal, antioxidant and antitumor activities of the red propolis Alagoas. BRAZ J BIOL 2018; 79:452-459. [PMID: 30379200 DOI: 10.1590/1519-6984.182959] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 12/27/2017] [Indexed: 12/29/2022] Open
Abstract
The study aimed to evaluate the antimicrobial activity, antioxidant, toxicity and phytochemical screening of the Red Propolis Alagoas. Antimicrobial activity was evaluated by disk diffusion method. Determination of antioxidant activity was performed using the DPPH assay (1.1-diphenyl-2-picrylhydrazyl), FTC (ferric thiocyanate) and determination of phenolic compounds by Follin method. Toxicity was performed by the method of Artemia salina and cytotoxicity by MTT method. The phytochemical screening for the detection of allelochemicals was performed. The ethanol extract of propolis of Alagoas showed significant results for antimicrobial activity, and inhibitory activity for Staphylococcus aureus and Candida krusei. The antioxidant activity of the FTC method was 80% to 108.3% hydrogen peroxide kidnapping, the DPPH method showed an EC50 3.97 mg/mL, the content of total phenolic compounds was determined by calibration curve gallic acid, resulting from 0.0005 mg/100 g of gallic acid equivalent. The extract was non-toxic by A. salina method. The propolis extract showed high activity with a higher percentage than 75% inhibition of tumor cells OVCAR-8, SF-295 and HCT116. Chemical constituents were observed as flavonones, xanthones, flavonols, and Chalcones Auronas, Catechins and leucoanthocyanidins. It is concluded that the extract can be tested is considered a potential source of bioactive metabolites.
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Affiliation(s)
- F R G Silva
- Centro Universitário Cesmac - CESMAC, Rua Cônego Machado, Farol, CEP 57051-160, Maceió, AL, Brasil
| | - T M S Matias
- Centro Universitário Cesmac - CESMAC, Rua Cônego Machado, Farol, CEP 57051-160, Maceió, AL, Brasil
| | - L I O Souza
- Centro Universitário Cesmac - CESMAC, Rua Cônego Machado, Farol, CEP 57051-160, Maceió, AL, Brasil
| | - T J Matos-Rocha
- Centro Universitário Cesmac - CESMAC, Rua Cônego Machado, Farol, CEP 57051-160, Maceió, AL, Brasil.,Universidade Estadual de Ciências da Saúde de Alagoas - UNCISAL, Av. Comendador Leão, Trapiche, CEP 57025-000, Maceió, AL, Brasil
| | - S A Fonseca
- Centro Universitário Cesmac - CESMAC, Rua Cônego Machado, Farol, CEP 57051-160, Maceió, AL, Brasil
| | - K C Mousinho
- Centro Universitário Cesmac - CESMAC, Rua Cônego Machado, Farol, CEP 57051-160, Maceió, AL, Brasil
| | - A F Santos
- Centro Universitário Cesmac - CESMAC, Rua Cônego Machado, Farol, CEP 57051-160, Maceió, AL, Brasil.,Universidade Estadual de Alagoas - UNEAL, Rua Governador Luiz Cavalcante, s/n, Alto Cruzeiro, CEP 57300-005, Arapiraca, AL, Brasil
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22
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Abstract
The diagnosis of IgE‐mediated food allergy based solely on the clinical history and the documentation of specific IgE to whole allergen extract or single allergens is often ambiguous, requiring oral food challenges (OFCs), with the attendant risk and inconvenience to the patient, to confirm the diagnosis of food allergy. This is a considerable proportion of patients assessed in allergy clinics. The basophil activation test (BAT) has emerged as having superior specificity and comparable sensitivity to diagnose food allergy, when compared with skin prick test and specific IgE. BAT, therefore, may reduce the number of OFC required for accurate diagnosis, particularly positive OFC. BAT can also be used to monitor resolution of food allergy and the clinical response to immunomodulatory treatments. Given the practicalities involved in the performance of BAT, we propose that it can be applied for selected cases where the history, skin prick test and/or specific IgE are not definitive for the diagnosis of food allergy. In the cases that the BAT is positive, food allergy is sufficiently confirmed without OFC; in the cases that BAT is negative or the patient has non‐responder basophils, OFC may still be indicated. However, broad clinical application of BAT demands further standardization of the laboratory procedure and of the flow cytometry data analyses, as well as clinical validation of BAT as a diagnostic test for multiple target allergens and confirmation of its feasibility and cost‐effectiveness in multiple settings.
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Affiliation(s)
- A F Santos
- Department of Paediatric Allergy, King's College London/Guy's and St Thomas' Hospital, London, UK
| | - W G Shreffler
- Department of Pediatrics, Division of Allergy and Immunology, Food Allergy Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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23
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Vidal LL, Soares MA, Santos AF. NS3 protease polymorphisms and genetic barrier to drug resistance of distinct hepatitis C virus genotypes from worldwide treatment-naïve subjects. J Viral Hepat 2016; 23:840-849. [PMID: 26775769 DOI: 10.1111/jvh.12503] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 08/26/2015] [Accepted: 12/02/2015] [Indexed: 12/26/2022]
Abstract
Hepatitis C virus (HCV) NS3 protease inhibitors have been primarily designed against genotype 1, the one with the lowest response to dual therapy. However, less evidence of their efficacy on non-1 genotypes is available, and any such information is mostly concentrated on genotypes 2-4. This study evaluated HCV protease resistance profiles in the major six HCV genotypes and identified genetic barrier (GB) profiles to each available protease inhibitor across HCV strains from different locations worldwide. We obtained 15 099 HCV sequences from treatment-naïve subjects retrieved at the Los Alamos HCV Sequence Database. The wild-type codons of different HCV genotypes were used to analyse the smallest number of nucleotide substitution steps required for changing that codon to the closest one associated with drug resistance. The 36L and 175L RAVs were found as genetic signatures of genotypes 2-5, while the 80K RAV was found in all genotype 5 sequences. Genotypes 4 and 6 showed a higher GB to RAV mutations conferring resistance to telaprevir, while genotypes 2-5 presented baseline resistance to that drug, carrying the 36L mutation. Genotype 4 had a higher GB to simeprevir resistance, requiring three substitutions to acquire the 155K mutation. Subtype 1b showed a higher GB than subtype 1a to resistance for most PIs, with RAVs at codons 36 and 155. Geographic disparities were also found in frequencies of certain RAVs in genotypes 2 and 3. Under a scenario of unprecedented evolution of anti-HCV direct-acting agents, the genetic composition of the circulating HCV sequences should be evaluated worldwide to choose the most appropriate/feasible therapeutic schemes with the highest genetic barriers to resistance.
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Affiliation(s)
- L L Vidal
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - M A Soares
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Programa de Genética, Instituto Nacional do Câncer, Rio de Janeiro, Brazil
| | - A F Santos
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
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24
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Rocha EKTG, Vanderlei AD, Ribeiro CMB, Lima ALO, Santos AF, Trindade Filho EM. Impact of Tooth Loss on Quality of Life. Pesqui bras odontopediatria clín integr 2016. [DOI: 10.4034/pboci.2016.161.08] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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25
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Vidal LL, Santos AF, Soares MA. The presence of additional resistance-related polymorphisms to NS3 protease inhibitors in hepatitis C virus sequences from the Los Alamos databank. J Viral Hepat 2014; 21:152. [PMID: 24383928 DOI: 10.1111/jvh.12194] [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: 12/09/2022]
Affiliation(s)
- L L Vidal
- Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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26
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Oliveira RR, Aguiar RL, Tessmann DJ, Nunes WMC, Santos AF, Vida JB. First Report of Leaf Spot Caused by Cladosporium perangustum on Syagrus oleracea in Brazil. Plant Dis 2014; 98:280. [PMID: 30708747 DOI: 10.1094/pdis-06-13-0595-pdn] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Syagrus oleracea (Mart.) Becc. (bitter coconut), a palm tree species that is native to central Brazil, has been increasingly cultivated in this country for heart-of-palm production. Epidemics of a necrotic leaf spot of unknown etiology have been recorded on bitter coconut plants in transplant nurseries and plantation since 2008. The first symptoms appear as small, yellow, hydrotic flecks on young or mature leaves that evolve to necrotic brown streaks that run parallel to the leaf veins. Usually, yellow halos occur around the lesions and hydrosis is common during lesion expansion. Necrotic lesions can reach up to 40 mm in length and 10 mm in width, and the lesions often coalesce, causing extensive tissue damage. During a survey in a 3-year-old bitter coconut plantation in Maringá County (coordinates: 23°23'51.25″ S, 51°57'02.09″ W; elevation: 507 m) in the state of Parana, a dozen symptomatic leaves were collected with the aim of elucidating the etiology of this disease. Conidia and conidiophores typical of Cladosporium were frequently observed on the diseased leaf tissue under natural field conditions as well on the surfaces of disinfected leaf tissues kept in a humid chamber for 48 h at 25 ± 2°C with a 12-h photoperiod. Five monoconidial cultures growing on potato dextrose agar (PDA) medium were obtained from different leaves showing leaf spot symptoms. The cultures were grown on PDA to induce sporulation. At 7 days after incubation at 25 ± 2°C and a 12-h photoperiod, gray to gray-olive colonies were observed. The conidiophores were macronematous, erect, oblong, branched, 1 to 5 septate, and 75.0 to 120.0 × 1.90 to 3.20 μm. The ramoconidia were cylindrical or oblong, 0 to 2 septate, and 28.0 to 40.0 × 2.8 to 3.6 μm, with a truncate base of 1.9 to 2.2 μm; secondary ramoconidia were cylindrical or oblong, 0 to 2 septate, 8.0 to 31.0 × 2.2 to 3.1 μm, with 3 to 5 distal conidial hila; intercalary 1-septate conidia were 5.5 to 17.0 × 2.1 to 3.4 μm, with 1 to 3 distal conidial hila; terminal 1-septate conidia were catenulate and 2.2 to 4.2 × 1.8 to 3.1 μm. Species identification was performed based on morphology and DNA sequence data (1). Portions of the elongation factor 1α (551 bp; TEF) and actin (213 bp; ACT) genes were amplified by PCR. A BLAST search of the GenBank database revealed that the TEF (KC484658 to KC484662) and ACT (KC484663 to KC484667) sequence fragments from isolates Gua1, Gua2, Gua3, Gua4, and Gua5 had 100% identity with the accessions HM148616 and HM148371 of Cladosporium perangustum (1). Isolates were tested for pathogenicity against bitter coconut. Ten potted plants with 4 to 6 fully expanded leaves were inoculated with each isolate by spraying a suspension of conidia (105 spores per ml) onto leaves until runoff using a handheld spray bottle. Non-inoculated controls (10 plants) were sprayed with distilled water. The plants were kept in a humid plastic chamber at 20 to 26°C. All examined isolates were pathogenic to bitter coconut, causing symptoms identical to those described above 12 days after inoculation. All inoculated tissues were plated onto PDA to confirm the presence of the pathogen. Live cultures are being maintained at the Micoteca/URM/UFPE ( www.ufpe.br/micoteca ), Brazil. To our knowledge, this is the first report of a disease caused by C. perangustum on S. oleracea worldwide, and the study provides valuable plant disease diagnostic information for the palm hearth industry in Latin America. Reference: (1) K. Bensch et al. Stud Mycol. 67:1, 2010.
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Affiliation(s)
| | - R L Aguiar
- Universidade Estadual de Maringá, Brazil
| | | | | | | | - J B Vida
- Universidade Estadual de Maringá, Brazil
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Carrapatoso I, Santos AF, Faria E, Luis AS. A curious case of exercise-induced wheat allergy in adulthood. J Investig Allergol Clin Immunol 2014; 24:64-65. [PMID: 24765886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
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28
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Santos AF, Luz M, Pires R, Saraiva ME, Carvalho M. P4.139 Efficacy of a Peer Education Programme For HIV/AIDS Prevention in Adults and Elderly. Sex Transm Infect 2013. [DOI: 10.1136/sextrans-2013-051184.1036] [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: 11/04/2022] Open
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29
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Keitel E, Fasolo LR, D'Avila AR, Didone EC, Santos AF, Rocha LM, Vitola SP, Guerra EE, Pires FS, Silva JG, Garcia VD. Results of En Bloc Renal Transplants of Pediatric Deceased Donors into Adult Recipients. Transplant Proc 2007; 39:441-2. [PMID: 17362753 DOI: 10.1016/j.transproceed.2007.01.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 10/23/2022]
Abstract
UNLABELLED Various strategies have evolved to expand the donor pool due to the extreme shortage of organs. Herein we reviewed our experience with en bloc pediatric kidney transplantation since 1998. METHODS From January 1998 to December 2004, nine adult patients underwent kidney transplantation using en bloc kidneys from donors <5 years old (range, 1 to 4). The mean age of the recipients was 45.1 years (range, 34 to 57). RESULTS In recipients of en bloc pediatric transplantation, cold ischemia time ranged from 14 to 26.2 hours (mean, 21.3 hours). Mean serum creatinine at 3, 6, and 12 months after transplantation was 1.53 +/- 0.57, 1.27 +/- 0.27, and 1.15 +/- 0.26 mg/dL compared with 1.93 +/- 1.35, 1.81 +/- 1.17, and 1.73 +/- 0.85 (P = .08) in recipients of single kidneys from ideal cadaveric donors (UNOS criteria, n = 368). Patient and graft survival at 1 year were 88.8% compared with 91.2% and 85% with ideal donors (P = NS), respectively. Three cases required additional surgery. There was one death due to a cerebral vascular accident. CONCLUSION The present study confirmed the excellent results achieved with transplantation using en bloc kidneys from young donors.
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Affiliation(s)
- E Keitel
- Nephrology Service- Renal and Pancreas Transplant Unit, Complexo Hospitalar Santa Casa de Porto Alegre, Porto Alegre, Brazil
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30
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Valar C, Keitel E, Dal Prá RL, Gnatta D, Santos AF, Bianco PD, Sukiennik TCT, Pegas KL, Bittar AE, Oliveira KT, Garcia VD. Parasitic Infection in Renal Transplant Recipients. Transplant Proc 2007; 39:460-2. [PMID: 17362759 DOI: 10.1016/j.transproceed.2007.01.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [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: 11/30/2022]
Abstract
The purpose of this study was to evaluate the prevalence of symptomatic parasitic infections in adult renal transplant recipients. We retrospectively analyzed a sample of 657 adult renal transplant recipients performed from January 2001 to December 2005 for immunosuppression protocol, clinical manifestations, parasite diagnosis, treatments, and outcomes. The prevalence of symptomatic parasitosis infections was 2.4% (16/657). None of the infected patients received cyclosporine in their immunosuppression protocol. Most of the infections were caused by Strongyloids stercoralis (n = 11), followed by Giardia lamblia (n = 3), Toxoplasma gondii (n = 1), and Trypanosoma cruzi: (n = 1). Strongyloides stercoralis was the most frequent agent, causing three cases of hyperinfection including one fatal case. With the new immunosuppressive regimes there must be a suspicion of parasitic infection to avoid the diagnostic delay that can be fatal. Strategies, including empiric treatment for S. stercoralis, must be considered.
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Affiliation(s)
- C Valar
- Nephrology Service-Renal and Pancreas Transplant Unit, Complexo Hospitalar Santa Casa de Porto Alegre, Brazil
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Garcia VD, Garcia CD, Keitel E, Santos AF, Bianco PD, Bittar AE, Neumann J, Campos HH, Pestana JOM, Abbud-Filho M. Expanding criteria for the use of living donors: what are the limits? Transplant Proc 2004; 36:808-10. [PMID: 15194278 DOI: 10.1016/j.transproceed.2004.03.063] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [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: 11/23/2022]
Abstract
The cadaver organ shortage has pushed the transplant community to extend the boundaries beyond the traditional criteria used for living donor transplantation. This new liberal policy involves: (1) the type of donor, such as emotionally related individuals, the direct or indirect interchange of donors, anonymous as well as rewarded donation; (2) challenging immunological criteria, using incompatible ABO blood types and or transplantation across a positive cross-match; (3) relaxing clinical criteria related to elderly, hypertensive, or obese donors, or patients with nephrolithiasis, fibromuscular renal artery disease, hematuria, or renal cell carcinomas. However, these practices may be dangerous. They must be clearly validated to promote a liberal policy of donor acceptance since it may carry a risk for both the donor and the recipient as well as for society. It is crucial to ensure the physical integrity of the donor as well as to provide guarantees, for instance a 1-year policy of life insurance, an indefinite long-term medical follow-up and the assurance of going to the top of the waiting list if the donor becomes uremic in the future.
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Affiliation(s)
- V D Garcia
- Santa Casa Hospital Complex, Porto Alegre RS, Brazil.
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Zaffari D, Losekann A, Santos AF, Manfroi WC, Bittar AE, Keitel E, Souza VB, Costa M, Prates VC, Kroth L, Braun ML. Effectiveness of diet in hyperlipidemia in renal transplant patients. Transplant Proc 2004; 36:889-90. [PMID: 15194305 DOI: 10.1016/j.transproceed.2004.03.115] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [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: 11/24/2022]
Abstract
In renal transplant patients dietary therapy alone does not always provide satisfactory results to control hyperlipidemia. To assess the effectiveness of diet, 151 renal transplant patients were selected for a prospective clinical study using pre- and posttest groups. During 8 weeks these patients received a diet with 25% energy intake from lipids, less than 10% from saturated fats, and less than 500 mg of cholesterol per day. Total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides were measured (pre- versus postdiet). The degree of compliance with the diet was measured by a 24-hour food recall record. Patients who had 90% compatibility between the questionnaire and the prescribed diet were considered compliant. The diet was considered effective in the patients who achieved a reduction of cholesterolemia to less than 200 mg/dL after 8 weeks of treatment. Ultimately 108 patients completed the study, with a significant reduction in total serum cholesterol from 262.37 mg/dL pretest to 252.85 mg/dL posttest (P =.010); LDL cholesterol from 174.29 mg/dL pretest to 166.60 mg/dL posttest (P =.036), of body weight from 68.98 kg pretest to 67.78 kg posttest (P =.01) and of body mass index from 25.86 kg/m(2) pretest to 25.41 kg/m(2) posttest (P =.01). Cholesterol variation was 3.63% as compared to prediet levels. Only 22 patients (20.4%) achieved cholesterol levels below 200 mg/dL. In conclusion, although diets decrease cholesterolemia, they alone are not effective to control hyperlipidemia in most renal transplant patients.
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Affiliation(s)
- D Zaffari
- Postprogram in Cardiology and Cardiovascular Sciences, Federal University of Rio Grande do Sul, and Nephrology Outpatient and Renal Transplantation Ward and Division of Nutrition and Dietetics, Complexo Hospitalar Santa Casa de Porto Alegre, Brazil
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Garcia VD, Keitel E, Santos AF, Bianco PD, Bittar AE, Bruno RM, Garcia CD, Vitola SP, Guerra EE, Didone E, Pires F, D'Avila AJ, Goldani JJ, Bianchini JJ. Immunosuppression in pancreas transplantation: mycophenolate mofetil versus sirolimus. Transplant Proc 2004; 36:975-7. [PMID: 15194338 DOI: 10.1016/j.transproceed.2004.04.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [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: 11/18/2022]
Abstract
The use of mycophenolate mofetil (MMF) in pancreas transplantation has increased graft survival and decreased the incidence of acute rejections episodes (ARE), regardless of the choice of calcineurin inhibitor. The combination of MMF with tacrolimus (TAC) is the most common protocol, it is considered the gold standard for new protocols. In the last few years, there have been reports of a small number of patients treated with sirolimus (RAPA), usually combined with TAC. Patient and pancreas survival rates as well as the incidence of ARE were similar to protocols with TAC and MMF. Twenty simultaneous pancreas and kidney (SPK) transplantations were performed using an immunosuppressive protocol of TAC, RAPA, and steroids (STE) after 2000. The incidence of ARE was 25%; all episodes responded to STE. Only 2 patients (10%) displayed hypercholesterolemia requiring treatment with statins. The use of RAPA as an alternative to MMF is promising, although presently one with limited experience. The combination of MMF and RAPA with or without a calcineurin inhibitor is an option to be evaluated in the future.
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Affiliation(s)
- V D Garcia
- Santa Casa Hospital Complex, Porto Alegre, RS, Brazil.
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Abstract
AIMS The aim of our study was to evaluate the frequency and the outcome of pregnancies in renal transplant recipients at our center. METHODS This study involved the retrospective analysis of 405 childbearing female renal recipients for presence of risk factors, the outcome of pregnancy, and maternal and fetal complications. RESULTS Fourty-four pregnancies occurred in 41 patients (10.8%). Mean age at transplantation was 23.6 +/- 6.3 years (range, 12-38 years). Only in 5 pregnancies were there no risk factors. In 13 (29.5%) pregnancies, the previous creatinine level was >1.5 mg/dL, in 16 (36.45%), proteinuria was >500 mg/24 hours; 29 (65.9%) were hypertensive; 14 (31.8%) had a time between transplantation and pregnancy less than 2 years (mean time, 35.5 +/- 30.9 months; range, 3-120 months). The outcomes were 27 (61.4%; 11 term and 16 premature delivery) successful pregnancies, 6 (13.6%) spontaneous abortions, 10 (22.7%) therapeutic abortions, and 1 (3.2%) fetal death. Pre-eclampsia occurred in 9 (20.4%) pregnancies and eclampsia in 1 (2.2%). The mean weight of the offspring was 2195 +/- 490 g (range, 1300- 2980 g). There were 2 cases of acute fetal distress and 1 oligodramnios. Median creatinine level was 1.0 (range, 0.4-3.0) mg/dL before conception and 1.2 (range, 0.7-9.0) mg/dL 6 month after pregnancy (P <.001). The long-term patient and graft survival rates were similar for pregnant versus nonpregnant recipients in the childbearing age. CONCLUSION Most pregnancies were successful, although the premature delivery rate was high (36.4%). Only 5 conceptions occurred in the absence of risk factors. Pregnancy did not impair the patient and graft survival during long-term follow-up.
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Affiliation(s)
- E Keitel
- Department of Nephrology, Renal Transplant Unit, Santa Casa Hospital, Porto Alegre-RS, Brazil.
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Abstract
The androgen receptor plays a pivotal role in the prostate. Its primary function is to provide responsive gene products for differentiation and growth, but under abnormal conditions it contributes to the development of prostate cancer. The goal of this review is to elucidate the molecular functions of the androgen receptor and its role in prostate cancer. Initially the function of the androgen receptor will be described. Next, the clinical diagnosis, epidemiological impact, and treatments of androgen-dependent and -independent prostate cancer will be discussed. Finally we will examine how the mechanism of androgen action has played a role in the translation of new therapies and how this may influence future treatment modalities of prostate cancer.
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Affiliation(s)
- A F Santos
- Departments of Urology and Biochemistry/Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
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Keitel E, Santos AF, Alves MA, Neto JP, Schaefer PG, Bittar AE, Goldani JC, Pozza R, Bruno RM, See D, Garcia CD, Garcia VD. Immunosuppression protocols for HLA identical renal transplant recipients. Transplant Proc 2003; 35:1074-5. [PMID: 12947863 DOI: 10.1016/s0041-1345(03)00313-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- E Keitel
- Renal Transplant Unit, Santa Casa Hospital, Porto Alegre, RS, Brazil.
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Garcia VD, Bonamigo-Filho JS, Neumann J, Fogliatto L, Gaiger AM, Garcia CD, Barros V, Keitel E, Bittar AE, Santos AF, Roithmann S. Rituximab and rapamycin for posttransplant lymphoproliferative disease treatment: report of three cases. Transplant Proc 2002; 34:2993-5. [PMID: 12431680 DOI: 10.1016/s0041-1345(02)03511-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- V D Garcia
- Fundação Faculdade Federal de Ciências Médicas and Santa Casa Hospital, Porto Alegre, Brazil
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Santos AF, Keitel E, Bittar AE, Neumann J, Fonseca N, Sporleder H, Canabarro R, Kroth L, Saitovitch D, Garcia VD. Simvastatin effect on NK cells activity in vivo: a double-blind randomized, placebo-controlled study. Transplant Proc 2002; 34:2874-5. [PMID: 12431639 DOI: 10.1016/s0041-1345(02)03541-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- A F Santos
- Renal Transplantation Unit, Santa Casa Hospital, Porto Alegre, Brazil
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Piovesan E, Castilhos C, Pozza R, Michelon TF, Seelig DC, Santos AF, Bittar E, Keitel E, Goldani JC, Garcia CD, Neumann J, Garcia VD. Hemolytic-uremic syndrome after kidney transplantation. Transplant Proc 2002; 34:2779-80. [PMID: 12431608 DOI: 10.1016/s0041-1345(02)03410-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- E Piovesan
- Complexo Hospitalar Santa Casa de Porto Alegre, Porto Alegre, Brazil
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Castilho C, Piovesan F, Michelon T, Seelig D, Pozza R, Santos AF, Bittar AE, Keitel E, Goldani JC, Neumann J, Garcia VD. Primary nonfunctioning graft in cadaveric renal transplantation. Transplant Proc 2001; 33:3785-6. [PMID: 11750611 DOI: 10.1016/s0041-1345(01)02601-x] [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] [Indexed: 11/16/2022]
Affiliation(s)
- C Castilho
- Complexo Hospitalar Santa Casa Hospital, Porto Alegre, Brazil
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Santos AF, Keitel E, Bittar AE, Neumann J, Fuchs FD, Goldani JC, Fonseca NA, Prates VC, Zaffan D, Voegeli C, Kroth L, Steffenello G, Saitovitch D, Garcia VD. Safety and efficacy of simvastatin for hyperlipidemia in renal transplant recipients: a double-blind, randomized, placebo-controlled study. Transplant Proc 2001; 33:1194-5. [PMID: 11267254 DOI: 10.1016/s0041-1345(00)02382-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- A F Santos
- Santa Casa Hospital and Post-Graduation in Nephrology from PUC-RS, Brazil
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Santos AF, Ferraz PA, de Abreu FC, Chiari E, Goulart MO, Sant'Ana AE. Molluscicidal and trypanocidal activities of lapachol derivatives. Planta Med 2001; 67:92-93. [PMID: 11270734 DOI: 10.1055/s-2001-10877] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The activity of the potassium salt of lapachol against the snail Biomphalaria glabrata and its egg masses was tested. The obtained IC50 values (2.70 ppm and 1.43 ppm, respectively) are indicative of a strong activity. Lapachol derivatives were also assayed against infective trypomastigote blood forms of T. cruzi and the triacetoxy derivative of reduced lapachol showed relevant trypanocidal activity, killing 95.7% of the parasites at the concentration of 42 microg/mL.
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Keitel E, Michelon T, Dominguez V, Bittar AE, Santos AF, Goldani JC, Neumann J, Garcia VD. Long-term evaluation of two protocols of elective cyclosporine withdrawal in renal transplant recipients. Transplant Proc 1999; 31:3013-5. [PMID: 10578370 DOI: 10.1016/s0041-1345(99)00647-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- E Keitel
- Nephrology Service, Santa Casa Hospital, Porto Alegre, Brazil
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44
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Affiliation(s)
- A F Santos
- Renal Transplant Unit, Santa Casa de Porto Alegre, Brazil
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45
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Nunes A, Santos AF, Costa e Silva I, Bícudo JG. [Friendly respect in the nursing relationship]. Servir 1997; 45:173-5. [PMID: 9370774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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46
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García VD, Keitel E, Almeida P, Santos AF, Becker M, Goldani JC. Morbidity after renal transplantation: role of bacterial infection. Transplant Proc 1995; 27:1825-6. [PMID: 7725521] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- V D García
- Renal Transplant Unit, Santa Casa de Misericordia of Porto Alegre, Brazil
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