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Indoor Air Mycological Survey and Occupational Exposure in Libraries in Mato Grosso-Central Region—Brazil

Advances in Microbiology 2018年第4期8卷 324-353页

作者： Diniz Pereira Leite Júnior Ronaldo Sousa Pereira Washington Santos de Almeida Sara de Almeida Alves Simoes Ana caroline Akeme Yamamoto Janaina Vasconcellos Ribeiro de Souza Evelin rodrigues Martins Fábio Alexandre Leal dos Santos Rosane Christine Hahn Faculty of Medicine Post Graduate Course in Health Sciences-Federal University of Mato Grosso(UFMT)CuiabáMTBrazil Specialized Medical Mycology Center Federal University of Mato Grosso(UFMT)CuiabáMTBrazil University Center of Várzea Grande(UNIVAG) Várzea GrandeMGBrazil Faculty of Medicine of Sao Josédo Rio Preto(FAMERP) Sao PauloSPBrazil

Background: Indoor air quality in environments where there is great circulation of people, posing risks to the health of its occupants, including allergic problems, infections and contaminations, can be aided by climatic factors, chemicals and biological agents housed in these environments, influencing the location and providing favorable conditions for the degradation of bibliographic collections. The present study investigated the presence of fungi in indoor environments in seven public and private libraries in the central region of Brazil, Mato Grosso, and verified the impact on occupational health. Results: A total of 26,194 fungal specimens were isolated from 342 dust samples collected using three techniques: Andersen’s sampler (12.3%), exposure plate dish (25.1%) and sterile swab (62.6%). A total of 184 fungal species were identified: 156 (84.8%) mycelial fungi and 28 (15.2%) yeast fungi, belonging 54 fungal genera, 43 (79.6%) mycelial fungi and 11 (20.4%) yeast fungi. The genus Aspergillus (40.6%) was one of the main fungi present in indoor air. Aspergillus niger (12.3%) was identified as the most prevalent species in literary environments, followed by Cryptococcus spp. (7.1%) and Cladosporium cladosporioides (7.0%). In relation to seasonal distribution, there was a greater fungal isolation in the dry season (54%);followed by the rainy season (46%). Conclusion: These results suggest the substrates researched in the evaluated environments presented in the form of documents, books and papers associated with dust and air humidity become suitable for microbiological proliferation. These findings highlight the importance of minimizing the risk of exposure to fungal agents, identified in pathogenic and toxigenic microenvironments in library collections.

关键词： Biological Hazards Library Collections Anemophilous Fungi Indoor Air Quality

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Disentangling spatial,environmental and historical effects on tropical forest tree species turnover

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Journal of Plant Ecology 2021年第4期14卷 717-729页

作者： Alisson Borges Miranda Santos Vinicius Andrade Maia Cleber Rodrigo de Souza Nathalle Cristine Alencar Fagundes Fernanda Moreira Gianasi Aurelio de Jesus rodrigues Pais Natalia de Aguiar-Campos Gabriela Gomes Pires Diego Teixeira Girardelli Jean Daniel Morel Mariana caroline Moreira Morelli Felipe de Carvalho Araujo Rubens Manoel dos Santos Department of Forestry Sciences Federal University of LavrasUniversity CampusLavrasBrazil Biological Sciences University of the State of Minas GeraisItuiutaba UnitItuiutabaBrazil Department of Biology Federal University of LavrasUniversity CampusLavrasBrazil Faculty of Environmental Engineering and Natural Resources Zambeze UniversityChimoioMozambique

Aims We aimed at disentangling the effects of spatial distance,current and past environmental dissimilarity,and their combinations on tree community taxonomic and phylogenetic turnover by addressing the following questions:(i)Is tree community taxonomic and phylogenetic turnover related to the indirect effects of spatial distance via environmental dissimilarity?(ii)Does tree community taxonomic and phylogenetic turnover respond to paleoclimate(Last Glacial Maximum and Mid-Holocene)?Methods The study was carried out in 14 Atlantic rainforest sites in Brazil(20.4 ha sampled)containing 615 tree species from 83 plant *** obtained plot-level geographic coordinates and soil variables and site-level bioclimatic variables in the current,Mid-Holocene and Last Glacial *** used structural equation models with a distance-based approach to(i)test the direct effects of spatial distance and environmental dissimilarity and(ii)test the indirect effects of spatial distance via environmental dissimilarity on taxonomic(Bray–Curtis distance)and phylogenetic turnover(Comdist and Comdistnt distances).Important Findings Our results suggest a weak indirect effect of spatial distance via environmental dissimilarity on taxonomic and phylogenetic *** community turnover was driven by the direct effects of neutral,niche-based and historical ***,we inferred that the paleoclimate(historical processes)promoted the selection of the clades that gave rise to the current flora,while spatial distances(neutral processes)limited the dispersal range of species from the regional pool and environmental conditions(niche-based processes)locally selected the taxa that are able to persist.

关键词： assembly processes phylogenetic communities environmental filtering neutral communities phylogenetic turnover ecological niche paleoclimate effects

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Genotyping and Antifungal Susceptibility Profile of Sequential Candida albicans Isolated from the Oral Cavity of HIV-Infected Individuals

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Journal of Pharmacy and Pharmacology 2018年第4期6卷 350-361页

作者： Daniela Vanessa Moris Joyce Marinho de Souza Marcia Souza Carvalho Melhem Marilena dos Anjos Martins caroline Lucio Moreira Lenice Rosario de Souza Gioconda San-Blas Maria Walderez Szeszs Lidia Raquel Carvalho Marcus Vinicius Pimenta-rodrigues Rinaldo Poncio Mendes Tropical Diseases Area--Faculdade de Medicina de Botucatu Universidade Estadual Paulista "Julio de Mesquita Filho "--UNESP Sao Paulo Botucatu 18600-000 Brazil Masters in Health Seience--Universidade do Oeste Paulista--UNOESTE Sao Paulo Presidente Prudente 19067-175 Brazil Department of Biomedical Sciences--Universidade do Oeste Paulista--UNOESTE Presidente Prudente 19050-920 Brazil Instituto Adolfo Lutz Sao Paulo 01246-000 Brazil Venezuelan Institute for Scientific Research Center for Microbiology and Cell Biology Caracas 11 01204 Venezuela Biostatistics Department Instituto de Biociencias Universidade Estadual Paulista "Julio de Mesquita Filho "--UNESP Sao Paulo Botueatu 18600-000 Brazil

Objective： The study aimed to evaluate the genotypic profiles of C. albicans （Candida albicans） sequentially isolated throughout the course of HIV infections, and to determine its MIC （minimal inhibitory concentrations） to AMB （amphotericin B）, FLC （fluconazole）, KTC （ketoconazole）, and ITC （itraconazole）. Design： samples were collected from the oral cavity of HIV-positive individuals during 4 years, with a sterilized swab. MIC was performed by using the microdilution method AFST/EUCAST. The genetic similarities within and between sequential clones of C. albicans were assessed by DNA fingerprinting using the random amplification ofpolymorphic DNA technique. Results： A total of 142 oral samples were isolated from 59 HIV-infected individuals who attempted up to five visits each, with or without symptoms of oropharyngeal candidiasis. Profile analysis revealed that yeasts isolated over sequential visits from symptomatic or asymptomatic individuals showed 78% or 87% relatedness, respectively. The degree of similarity among C. albicans was higher for isolates from colonization than for those from infection. Genetically identical C. albicans samples also formed connected subelusters in sequential visits. In regard to susceptibility profile, all isolates were susceptible to AMB, FLC, KTC, and ITC and maintained this pattern all along, no differences in MICs of any given antifungal compound were observed for sequential C. albicans isolates. Conclusions： These data suggest that genotype and susceptibility to antifimgal drugs were maintained over time in sequentially isolates of C. albicans colonization and a diverse evolutionary genetic trend in C. albicans sequentially isolated from the oral eandidiasis of HIV infected individuals.

关键词： Genotyping Candida albicans sequential HIV- positive individuals oral cavity.

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Essential Oils from the Leaves and Flowers of Callistemon viminalis:Chemical Characterization and Evaluation of the Insecticide and Antifungal Activities

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American Journal of Plant Sciences 2017年第10期8卷 2516-2529页

作者： Thais Aparecida Sales Maria Das Gracas Cardoso Luiz Gustavo De Lima Guimaraes Karen caroline Camargo Danúbia Aparecida De Carvalho Selvati Rezende Rafaela Magalhães Brandao Rafaela Vieira Souza Vanúzia rodrigues Fernandes Ferreira Ana Ermelinda Marques Maísa Lamounier Magalhaes David Lee Nelson epartment of Chemistry Federal University of LavrasLavrasBrazil Department of Natural Science Federal University of Sao Joao Del ReiSao Joao Del ReiBrazil Department of Food Science Federal University of LavrasLavrasBrazil Pro-Reitoria de Pesquisa e Pós-Graduacao Federal University of the Jequitinhonha and Mucuri ValleysDiamantinaBrazil

The chemical compositions of the essential oils from the leaves and flowers of Callistemon viminalis and their insecticide and fungitoxic activities were determined. The essential oil was extracted by the hydrodistillation method using a modified Clevenger apparatus. The chemical characterization was performed by GC-MS and GC-FID. The evaluation of the insecticidal activity was performed with the Myzus persicae aphid, and the antifungal potential was determined via the inhibition of the mycelial growth of Alternaria alternata, Fusarium oxysorum and Botrytis cinérea phytopathogenic fungi. The principal components of the essential oils from the leaves and flowers were eucalyptol (84.60% and 61.47%), α-pinene (10.28% and 21.48%) and α-terpineol (2.59% and 2.79%), respectively. The use of a 0.5% concentration of the essential oil from the flowers influenced the preference of aphids and their reproduction. The number of adult aphids decreased within a period of 48 hours in the presence of the essential oil from the leaves. In the test with no chance of choice, the mean number of adults decreased with both oils within 48 hours. No inhibition of the mycelial growth of the A. alternate microorganism was observed in any of the treatments with the two essential oils. However, the growth of F. oxysporum and B. cinerea fungi was inhibited. The mycelial growth of F. oxysporum was inhibited with the concentration of 100 μL·Lˉ1 of the oil from the flowers and 250 μL·Lˉ1 of the oil from the leaves. The inhibition of the growth of B. cinerea was observed at concentrations of 500 and 100 μL·Lˉ1 for the oils from the flowers and leaves, respectively. The essential oils presented insecticidal and antifungal potentials. However, further studies are needed for these oils to be used in integrated pest management.

关键词： Myzus persicae Biological Activity Phytopathogenic Fungi Natural Products

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Punica granatum Leaf Lipophilic Fraction Favours Mortality by Attenuating Inflammation in Mice with Polymicrobial Sepsis

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Journal of Pharmacy and Pharmacology 2019年第7期7卷 355-367页

作者： Nagila caroline Fialho Sousa Isabella Fernandes da Silva Figueiredo Mizael Calacio de Araujo Elaine Pereira de Andrade Thais Costa Alves Bruna Letícia Rosa da Silva Domingos Magno Santos Pereira Saulo JoseFigueiredo Mendes Joao Francisco Silva rodrigues Jaqueline Pessoa Pontes Simone Aparecida Teixeira AndreAlvares Marques Vale Marcus Vinicius Dias-Souza Lidio Goncalves Lima-Neto Vera Lucia dos Santos Ana Paula Azevedo-Santos Marcelo Nicolas Muscara Valerio Monteiro-Neto Andrea de Souza Monteiro Luis Claudio Nascimento da Silva Elizabeth Soares Fernandes Programa de Pos-graduacao Universidade CEUMARua JosueMontellon°1RenascencaSao LuisMA 65075-120Brazil Departamento de Farmacologia Universidade de Sao PauloAv.Prof.Lineu Prestesn°1524Sala 326ButantanSao PauloSP 05508-900Brazil Programa de Pos-graduacao em Ciências em Saude Universidade Federal do MaranhaoAvenida dos Portuguesesn°1966BacangaSao LuisMA 65080-805Brazil Departamento de Microbiologia Universidade Federal de Minas GeraisAv.Antonio Carlosn°6627PampulhaBelo HorizonteMG 31270-901Brazil Departamento de Patologia Universidade Federal do MaranhaoAvenida dos Portuguesesn°1966BacangaSao LuísMA 65080-805Brazil

Punica granatum *** known antimicrobial and anti-inflammatory *** of different parts of this plant have been commonly used in the folk medicine to prevent and treat infections;and studies have supported the use of *** extracts for this ***,little is known of the effects of ***-derived fractions in severe infectious diseases such as ***,we investigated the actions of the hexane fraction(HF),rich in lipophilic compounds,obtained from the leaves of this plant,in a murine model of polymicrobial *** pre-treatment with HF increased mortality in septic *** same animals presented with lower levels of interleukin-6,nitric oxide and hydrogen peroxide in their peritoneal lavage samples than vehicle *** also increased polymorphonuclear cell accumulation in to the peritoneum of mice with ***-derived nitric oxide upon lipopolysaccharide stimuli was markedly reduced by incubation with ***,triterpenes,phytosterols,vitamin E and ascorbyl palmitate were detected in the *** results indicate that *** leaf lipophilic fractions may worsen sepsis *** effect may be associated with its bioactive compounds which act synergistically or not,increasing sepsis mortality in vivo.

关键词： P.granatum infection inflammation

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