21 research outputs found
Análise da representatividade das unidades de conservação federais na Bacia do Rio São Francisco
No presente trabalho foi feito um levantamento dos percentuais de áreasprotegidas da bacia do rio São Francisco relacionando-os com os percentuais nacionais,por meio de técnicas de geoprocessamento. Estimou-se um percentual de 1,66% deáreas protegidas para a bacia do rio São Francisco, sendo 0,63% referente às categoriasde Proteção Integral e 1,63% às de Uso Sustentado. Esse percentual total da bacia ficamuito aquém do nacional (5,83%) e é muito baixo para uma área de importância cultural,social e ambiental. Os baixos valores encontrados revelam um déficit significativo deáreas preservadas na bacia o que, provavelmente, reflete negativamente na qualidade devida de seus habitantes. Esses índices fornecem subsídios para priorizar a implantaçãode novas áreas de preservação. _______________________________________________________________________________ ABSTRACTIn this paper it was made a survey of the protected areas percent of the SãoFrancisco basin and its relationship with the national percent ones, through the use ofGIS techniques. It was estimated 1,66% of protected areas for the San Francisco basin,being 0,63% related to Integral Protection categories and 1,63% to sustainable use. Thisbasin value is lower than the national (5,83%) and it is very low for an important area withcultural, social and environmental potential. The low values reveal a significant deficit ofpreserved areas in the basin that, probably, affect the inhabitants. Those indexes can beused to implement the new conservation areas
ANÁLISE DA REPRESENTATIVIDADE DAS UNIDADES DE CONSERVAÇÃO FEDERAIS NA BACIA DO RIO SÃO FRANCISCO.
In this paper it was made a survey of the protected areas percent of the São Francisco basin and its relationship with the national percent ones, through the use of GIS techniques. It was estimated 1,66% of protected areas for the San Francisco basin, being 0,63% related to Integral Protection categories and 1,63% to sustainable use. This basin value is lower than the national (5,83%) and it is very low for an important area with cultural, social and environmental potential. The low values reveal a significant deficit of preserved areas in the basin that, probably, affect the inhabitants. Those indexes can be used to implement the new conservation areas.No presente trabalho foi feito um levantamento dos percentuais de áreas protegidas da bacia do rio São Francisco relacionando-os com os percentuais nacionais, por meio de técnicas de geoprocessamento. Estimou-se um percentual de 1,66% de áreas protegidas para a bacia do rio São Francisco, sendo 0,63% referente às categorias de Proteção Integral e 1,63% às de Uso Sustentado. Esse percentual total da bacia fica muito aquém do nacional (5,83%) e é muito baixo para uma área de importância cultural, social e ambiental. Os baixos valores encontrados revelam um déficit significativo de áreas preservadas na bacia o que, provavelmente, reflete negativamente na qualidade de vida de seus habitantes. Esses índices fornecem subsídios para priorizar a implantação de novas áreas de preservação
Low dose systemic or intralesional meglumine antimoniate treatment for American tegumentary leishmaniasis results in low lethality, low incidence of relapse, and low late mucosal involvement in a referral centre in Rio de Janeiro, Brazil (2001-2013)
SARS-CoV-2 introductions and early dynamics of the epidemic in Portugal
Genomic surveillance of SARS-CoV-2 in Portugal was rapidly implemented by
the National Institute of Health in the early stages of the COVID-19 epidemic, in collaboration
with more than 50 laboratories distributed nationwide.
Methods By applying recent phylodynamic models that allow integration of individual-based
travel history, we reconstructed and characterized the spatio-temporal dynamics of SARSCoV-2 introductions and early dissemination in Portugal.
Results We detected at least 277 independent SARS-CoV-2 introductions, mostly from
European countries (namely the United Kingdom, Spain, France, Italy, and Switzerland),
which were consistent with the countries with the highest connectivity with Portugal.
Although most introductions were estimated to have occurred during early March 2020, it is
likely that SARS-CoV-2 was silently circulating in Portugal throughout February, before the
first cases were confirmed.
Conclusions Here we conclude that the earlier implementation of measures could have
minimized the number of introductions and subsequent virus expansion in Portugal. This
study lays the foundation for genomic epidemiology of SARS-CoV-2 in Portugal, and highlights the need for systematic and geographically-representative genomic surveillance.We gratefully acknowledge to Sara Hill and Nuno Faria (University of Oxford) and
Joshua Quick and Nick Loman (University of Birmingham) for kindly providing us with
the initial sets of Artic Network primers for NGS; Rafael Mamede (MRamirez team,
IMM, Lisbon) for developing and sharing a bioinformatics script for sequence curation
(https://github.com/rfm-targa/BioinfUtils); Philippe Lemey (KU Leuven) for providing
guidance on the implementation of the phylodynamic models; Joshua L. Cherry
(National Center for Biotechnology Information, National Library of Medicine, National
Institutes of Health) for providing guidance with the subsampling strategies; and all
authors, originating and submitting laboratories who have contributed genome data on
GISAID (https://www.gisaid.org/) on which part of this research is based. The opinions
expressed in this article are those of the authors and do not reflect the view of the
National Institutes of Health, the Department of Health and Human Services, or the
United States government. This study is co-funded by Fundação para a Ciência e Tecnologia
and Agência de Investigação Clínica e Inovação Biomédica (234_596874175) on
behalf of the Research 4 COVID-19 call. Some infrastructural resources used in this study
come from the GenomePT project (POCI-01-0145-FEDER-022184), supported by
COMPETE 2020 - Operational Programme for Competitiveness and Internationalisation
(POCI), Lisboa Portugal Regional Operational Programme (Lisboa2020), Algarve Portugal
Regional Operational Programme (CRESC Algarve2020), under the PORTUGAL
2020 Partnership Agreement, through the European Regional Development Fund
(ERDF), and by Fundação para a Ciência e a Tecnologia (FCT).info:eu-repo/semantics/publishedVersio
I_PP7_Mycorrhization and micropropation of chestnut (Castanea sativa Mill.) seedlings as tools to obtain high added-value phenolic compounds
MiChestnut3 is a project of the company DEIFIL whose main objective is to produce more resistant
and productive hybrid chestnut (Castanea sativa Mill.) seedlings through micropropagation and
mycorrhization techniques. In this work, in addition to the agronomic traits of the micropropagated
mycorrhizal chestnut seedlings, it was also important to evaluate the changes induced by
mycorrhization in the phenolic profile of these plants. Phenolic compounds are plant secondary
metabolites involved in plant-microbe interactions/symbiosis and act as signaling molecules in the
establishment of arbuscular mycorrhizal symbioses, as well as in plant defense mechanisms [1].
According to the literature, considerable increases in phenolic compounds in host plants as a result of
arbuscular mycorrhizal fungus inoculation have been reported during the progression of the infection
[1]. Therefore, this work was carried out to study the impact of the type of fungal inoculum and the
period of mycorrhization (before or after potting) on the qualitative and quantitative profile of
phenolic compounds of the roots and leaves of the chestnut seedlings produced by DEIFIL. After
collection and lyophilization of the plant material, hydroethanolic extracts were prepared and the
phenolic compounds were characterized by HPLC-DAD-ESI/MS [2]. Ellagic acid derivatives and Oglycosylated
flavonoids were the major phenolic compounds in both plant roots and leaves, which
agreed with previous reports [2,3]. A statistical analysis showed that the type of inoculum and period
of mycorrhization significantly (p<0.05) affected the phenolic profile of the chestnut hybrids. In
general, the mycorrhizal seedlings with the fungi Amanita caesarea and Boletus edulis were those that
presented the highest levels of phenolic compounds. Relationships between the levels of these
signaling compounds and the agronomic performance of chestnut seedlings were also found. The
results bring new perspectives into the future production of a hybrid chestnut tree resistant to ink
disease in the main traditional Portuguese varietiesThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support
through national funds FCT/MCTES (PIDDAC) to CIMO (UIDB/00690/2020 and UIDP/00690/2020) and
SusTEC (LA/P/0007/2021). To FCT for the contract of M.I. Dias (CEEC Institucional), C. Pereira (CEEC
Institucional), J. Pinela (CEECIND/01011/2018), and L. Barros (CEEC Institucional). To 2020 North Portugal
Regional Operational Programme through the European Regional Development Fund (ERDF) for co-funding the
MiChestnut3 Individual R&D project (45079).info:eu-repo/semantics/publishedVersio
Low dose systemic or intralesional meglumine antimoniate treatment for American tegumentary leishmaniasis results in low lethality, low incidence of relapse, and low late mucosal involvement in a referral centre in Rio de Janeiro, Brazil (2001-2013)
BACKGROUND American tegumentary leishmaniasis (ATL) is a non-lethal parasitic disease that presents with cutaneous (CL) and mucosal (ML) clinical forms. ATL treatment aims at healing the lesions and preventing the development of the late mucosal form. Systemic meglumine antimoniate (MA) therapy with 10-20 mg Sb5+/kg/day is the first choice of treatment. However, alternative therapies using 5 mg Sb5+/kg/day or intralesional (IL) MA are the usual regimens at the National Institute of Infectious Diseases (NIID), Rio de Janeiro, Brazil. OBJECTIVES To evaluate lethality and the incidence of relapse and development of late ML in CL patients treated at NIID from 2001 until 2013. METHODS Data were recovered from records of all ATL patients diagnosed during that period. FINDINGS Out of 777 patients, 753 were treated with MA (96.9%). Of those, 89.1% received alternative therapy of 9.9% IL and 79.2% systemic 5 mg Sb5+/kg/day. Some patients required 1-3 additional courses of treatment, thus making a total of 997 courses; 85.2% of them were subjected to alternative therapies. Lethality was 0.1%, relapse incidence 5.8%, and late ML incidence 0.25%. As a final outcome for the 777 patients, 95.9% were cured, 0.1% died and 4.0% were not able to follow-up. MAIN CONCLUSIONS Alternative MA schedules resulted in low lethality without increase of relapse or late ML incidence
Low dose systemic or intralesional meglumine antimoniate treatment for American tegumentary leishmaniasis results in low lethality, low incidence of relapse, and low late mucosal involvement in a referral centre in Rio de Janeiro, Brazil (2001-2013)
<div><p> BACKGROUND American tegumentary leishmaniasis (ATL) is a non-lethal parasitic disease that presents with cutaneous (CL) and mucosal (ML) clinical forms. ATL treatment aims at healing the lesions and preventing the development of the late mucosal form. Systemic meglumine antimoniate (MA) therapy with 10-20 mg Sb5+/kg/day is the first choice of treatment. However, alternative therapies using 5 mg Sb5+/kg/day or intralesional (IL) MA are the usual regimens at the National Institute of Infectious Diseases (NIID), Rio de Janeiro, Brazil. OBJECTIVES To evaluate lethality and the incidence of relapse and development of late ML in CL patients treated at NIID from 2001 until 2013. METHODS Data were recovered from records of all ATL patients diagnosed during that period. FINDINGS Out of 777 patients, 753 were treated with MA (96.9%). Of those, 89.1% received alternative therapy of 9.9% IL and 79.2% systemic 5 mg Sb5+/kg/day. Some patients required 1-3 additional courses of treatment, thus making a total of 997 courses; 85.2% of them were subjected to alternative therapies. Lethality was 0.1%, relapse incidence 5.8%, and late ML incidence 0.25%. As a final outcome for the 777 patients, 95.9% were cured, 0.1% died and 4.0% were not able to follow-up. MAIN CONCLUSIONS Alternative MA schedules resulted in low lethality without increase of relapse or late ML incidence.</p></div