Ministry of Agriculture

About: Ministry of Agriculture is a government organization based out in Rio de Janeiro, Brazil. It is known for research contribution in the topics: Biology & Chemistry. The organization has 1153 authors who have published 1189 publications receiving 14442 citations.

Persistência de plantas medicinais em sistemas agroflorestais no município de São Bento do Sul, SC, Brasil

Abstract: No final da decada de 90, a comunidade de Rio Natal, no municipio de Sao Bento do Sul, SC, passou a fazer parte de uma Area de Preservacao Ambiental e desde entao, muitas areas de cultivo, paulatinamente, estao retomando o processo de formacao florestal. Neste cenario, foi sugerido pela comunidade, a possibilidade de cultivo de plantas medicinais adaptadas as condicoes de sombreamento. Em atendimento a essa demanda foi realizada uma pesquisa participativa na comunidade, de 2005 a 2008, onde foram avaliadas 14 especies de plantas medicinais com potencial de mercado, cultivadas em areas sombreadas, em tres propriedades familiares. Foram avaliados: taxa de sobrevivencia das especies, incidencia de doencas e pragas, teor de massa seca e altura das plantas. Apresentaram persistencia ao cultivo em areas sombreadas as especies: Curcuma longa L. (acafrao-da-india); Arctium lappa L. (bardana); Pfaffia glomerata (Spreng) Pedersen (fafia ou ginseng-brasileiro); Mikania glomerata Sprengel (guaco); Alternanthera brasiliana L. Kuntze (penicilina); Pogostemon cablin (Blanco) Benth (patchuli) e Maytenus ilicifolia Mart. Ex Reissek (espinheira-santa).

Studien über analytisch verwertbare Umsetzungen von Dämpfen niedrig siedender organischer Lösungsmittel in der Tüpfelanalyse

Abstract: Es wurden in der Arbeitsweise der Tupfelanalyse Versuche uber den Eintritt von Dampfen einiger niedrig siedender Losungsmittel in Pyrolysenreaktionen angestellt. Es wurde gefunden: Pyrolytische Oxydationen unter Bildung von Halogen erfolgen bei Erhitzung von halogenhaltigen Losungsmitteln mit hoheren Metalloxyden auf 240°. Bei Erhitzung mit Kupferoxyd, Wolframsaure oder Chromsaure unterscheiden sich die Dampfe von Chloroform und Tetrachlorkohlenstoff in charakteristischer Weise. Pyrolytische Reduktionen unter Bildung von Chlorwasserstoff erfolgen bei Erhitzung von Chloroform oder Tetrachlorkohlenstoff mit Benzoin auf 220°. Pyrolytische Hydrolysen unter Bildung von Halogenwasserstoff erfolgen bei Erhitzung von Tetrachlorkohlenstoff oder Chloroform mit Mangansulfatmonohydrat auf 240°. Bei Schwefelkohlenstoff erfolgt bei 270-280° eine Pyrohydrolyse unter Bildung von Schwefelwasserstoff. Pyrolytische Ammonolyse unter Bildung von Cyanwasserstoff erfolgt bei Erhitzung von Chloroform mit Guanidinkarbonat auf 190°. Pyrolytische Disproportionierung unter Bildung von Chlor und Chlorwasserstoff erfolgt bei Erhitzung von Dampfen halogenhaltiger Losungsmittel mit katalytisch wirksamen Oxyden, Kieselsaure, Chromaten, Sulfaten und Kohlenstoff auf 250°. Uber das Ausmass der pyrolytischen Reaktionen, denen plausible Umsetzungsgleichungen zugrundegelegt werden, konnen noch keine Aussagen gemacht werden. Sie sind indessen so weitgehend, um eine Reihe analytischer Anwendungen zu ermoglichen. Von diesen ist besonders die Unterscheidung von Tetrachlorkohlenstoff und Chloroform, deren Siedepunkte nahe beieinander liegen, von Interesse.

Efeitos da adição de agentes tróficos na dieta de leitões desmamados sobre a expressão da enzima ornitina descarboxilase, os conteúdos de proteína e dna e o desempenho

Abstract: Two experiments were carried out to evaluate the effect of adding glutamine, fish oil or yeast cellular wall to the diet of weaned piglets on the expression of the enzyme ornithine decarboxylase (ODC), the protein content and DNA in small intestine samples and on performance. In the first experiment, 24 weaned piglets were used to measure the performance at the phases prestarter, starter 1 and starter 2. Four diets were tested (T1 - basal diet (BD); T2 - BD + 1% of glutamine; T3 - BD + 0,2% of yeast cellular wall; T4 - BD + 5% of fish oil). At the second experiment 45 weaned piglets were used and distributed in a randomized block design, in factorial outline with four diets and three slaughter ages (on the day of weaning, on the seventh and fourteenth days postweaning). The tested diets did not alter the piglets’ performance in none of the phases. There was reduction of the expression of the ODC enzyme, of the protein concentration and of the relationship protein/DNA to the seven days postweaning, with increase of the values on the 14 th day, evidencing a state of hypotrophy of the mucous membrane, suggesting that the process of protein synthesis in the small intestine was diminished in the first week after weaning, but it presented recovery signs in the second week. KEYWORDS: glutamine; polyunsaturated fatty acids; prebiotic; swine.

Identification and validation of a novel 16-gene prognostic signature for patients with breast cancer

Abstract: Abstract Despite increased early diagnosis and improved treatment in breast cancer (BRCA) patients, prognosis prediction is still a challenging task due to the disease heterogeneity. This study was to identify a novel gene signature that can accurately evaluate BRCA patient survival. The gene expression and clinical data of BRCA patients were collected from The Cancer Genome Atlas (TCGA) and the Molecular Taxonomy of BRCA International Consortium (METABRIC) databases. Genes associated with prognosis were determined by Kaplan–Meier survival analysis and multivariate Cox regression analysis. A prognostic 16-gene score was established with linear combination of 16 genes. The prognostic value of the signature was validated in the METABRIC and GSE202203 datasets. Gene expression analysis was performed to investigate the diagnostic values of 16 genes. The 16-gene score was associated with shortened overall survival in BRCA patients independently of clinicopathological characteristics. The signalling pathways of cell cycle, oocyte meiosis, RNA degradation, progesterone mediated oocyte maturation and DNA replication were the top five most enriched pathways in the high 16-gene score group. The 16-gene nomogram incorporating the survival‐related clinical factors showed improved prediction accuracies for 1-year, 3-year and 5‐year survival (area under curve [AUC] = 0.91, 0.79 and 0.77 respectively). MORN3, IGJ, DERL1 exhibited high accuracy in differentiating BRCA tissues from normal breast tissues (AUC > 0.80 for all cases). The 16-gene profile provides novel insights into the identification of BRCA with a high risk of death, which eventually guides treatment decision making.

Cisticercose em bovinos e suínos (análise estatística de dados colhidos pelo S.I.F. nº 2 do D.I.P.O.A, do Ministério da Agricultura, junto ao frigorífico Anglo de Barretos, estado de São Paulo, Brasil

Abstract: This work represents an effort to a better knowledge of the behaviour of cisticercosis in bovines and swines in Sao Paulo and in the neighbouring States of Minas Gerais, Goiaz and Mato Grosso. The data were collected by the Federal Inspection Service from July, 1941 to June, 1952, at the Anglo Packing House, located in Barretos, State of Sao Paulo, Brazil.