Aqueous extract of Psidium guajava leaves: phenolic compounds and inhibitory potential on digestive enzymes.

abstract：:Urolithiasis is a disorder of kidneys in which stones formation occur due to the excessive deposition of minerals in the urinary tract. It affects 12% of the population worldwide. Salvia hispanica seeds are rich source of quercetin which has preventive role in renal stone formation. The study objective was to explore ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Saleem U,Ahmad N,Shah MA,Anwar F,Ahmad B

更新日期：2020-11-16 00:00:00

abstract：:Investigation of hyperferritinemia in metabolic syndrome patients represents a diagnostic challenge, but it is essential for the identification of individuals with iron overload. Hepcidin negatively regulates iron absorption and release. An increase in hepcidin occurs when iron levels are sufficient or in inflammatory...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Rauber MR,Pilger DA,Cecconello DK,Falcetta FS,Marcondes NA,Faulhaber GAM

更新日期：2019-05-13 00:00:00

abstract：:This article analyzes the existing collaboration networks in the Brazilian scientific output in Evolutionary Biology, considering articles published during the period from 2000 to 2012 in journals indexed by Web of Science. The methodology integrates bibliometric techniques and Social Network Analysis resources to des...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Santin DM,Vanz SA,Stumpf IR

更新日期：2016-03-01 00:00:00

abstract：:A multivariable deterministic extremum seeking (ES) is being evaluated to construct an adaptive Proportional-Integral-Derivative (PID) control law for the functional Neuromuscular Electrical Stimulation (NMES) of stroke patients. The developed scheme is applied to control the position of the patient's arm so that move...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Roux-Oliveira T,Costa LR,Pino AV,Paz P

更新日期：2019-02-14 00:00:00

abstract：:We evaluated an artificial tritrophic exposure system for use in ecotoxicological evaluations of environmental stressors on aphidophagous predators. It consists of an acrylic tube with a Parafilm M sachet containing liquid aphid diet, into which can be added environmental stressors. Immature Cycloneda sanguinea, Harmo...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Paula DP,Souza LM,Andow DA,Sousa AA,Pires CS,Sujii ER

更新日期：2016-09-01 00:00:00

abstract：:A simple methodology for the synthesis of enynes by indium mediated diastereoselective allylation of aromatic N-tert-butanesulfinylimines bearing alkenyl groups at ortho-position with allyl bromide has been developed. The addition of the allyl indium intermediate to the chiral imine took place with excellent diastereo...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Garcia-Muñoz MJ,Sirvent A,Foubelo F,Yus M

更新日期：2018-01-01 00:00:00

abstract：:Radiopharmaceuticals play a critical role in modern medicine primarily for diagnostic purposes, but also for monitoring disease progression and response to treatment. As the use of image has been increased, so has the use of prescription medications. These trends increase the risk of interactions between medications a...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Santos-Oliveira R,Smith SW,Carneiro-Leão AM

更新日期：2008-12-01 00:00:00

abstract：:The altered expression of the SOX2 transcription factor is associated with oncogenic or tumor suppressor functions in human cancers. This factor regulates the migration and invasion of different cancer cells. In this study we investigated the effect of constitutive SOX2 overexpression on the migration and adhesion cap...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Drakulic D,Vicentic JM,Schwirtlich M,Tosic J,Krstic A,Klajn A,Stevanovic M

更新日期：2015-03-01 00:00:00

abstract：:Drosophila serido and D. antonietae are sibling species belonging to the Drosophila buzzatii cluster. Morphologically, they can only be discriminated by quantitative traits. In this paper we analyze the length and equalized average curvature of four regions of the aedeagus of D. antonietae and D. serido. Specimens of ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Franco FF,Prado PR,Sene FM,Costa LF,Manfrin MH

更新日期：2006-06-01 00:00:00

abstract：:Epigeic coleopteran species are linked by complex trophic webs and implicated in several ecosystem services for agriculture. Although there are reports of ground-dwelling Coleopterans inhabiting main extensive agroecosystems, their assemblages in horticultural crops in Argentina have been little explored. We examined ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Rouaux J,Cabrera N,MartÍnez AS,Posse MC,Luna MG

更新日期：2020-01-01 00:00:00

abstract：:Several parasitoids attacking the same host may lead to competition. Adult parasitoids' abilities to find, parasitize and defend hosts determine resource's retention potential. In soybean, two egg parasitoid species, Telenomus podisi and Trissolcus urichi (Hymenoptera: Platygastridae), compete on the egg masses of Pie...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Cingolani MF,Barakat MC,Liljesthröm GG,Colazza S

更新日期：2019-10-14 00:00:00

abstract：:Coffee is one of the most important Brazilian agricultural commodities exported, and Minas Gerais and Espírito Santo States are the main coffee producers. Scale insects are important coffee pests, and 73 species of Cerococcidae (3), Coccidae (18), Diaspididae (6), Eriococcidae (1), Ortheziidae (3), Pseudococcidae (21)...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Fornazier MJ,Martins DS,Willink MCG,Pirovani VD,Ferreira PSF,Zanuncio JC

更新日期：2017-10-01 00:00:00

abstract：:Lyroglossa and Pteroglossa (Orchidaceae: Spiranthinae) are first recorded for Rio Grande do Sul. Descriptions, illustrations, taxonomic notes and distribution are presented. We also provide an artificial key to distinguish the genera of the "Stenorrhynchos Clade" reported so far in Rio Grande do Sul. ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Buzatto CR,Singer RB,Bordignon SAL

更新日期：2014-06-01 00:00:00

abstract：:The acceleration of the anthropogenic activity has increased the atmospheric carbon concentration, which causes changes in regional climate. The Gross Primary Production (GPP) is an important variable in the global carbon cycle studies, since it defines the atmospheric carbon extraction rate from terrestrial ecosystem...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Danelichen VH,Biudes MS,Velasque MC,Machado NG,Gomes RS,Vourlitis GL,Nogueira JS

更新日期：2015-09-01 00:00:00

abstract：:Acute intermittent porphyria is the most common acute porphyria caused by a decrease in hepatic porphobilinogen deaminase activity, resulting in an accumulation of delta-aminolevulinic acid and porphobilinogen. This disease shows nonspecific signs and symptoms that can be confused with other diseases, thereby making t...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Dos Santos AR,De Albuquerque RR,Doriqui MJ,Costa GC,Dos Santos AP

更新日期：2013-09-01 00:00:00

abstract：:Life history traits are considered key indicators of plant invasibility. Among them, the germination behavior of seeds is of major relevance because it is influenced by environmental factors of invaded ecosystem. Here, we investigated how seed traits and seed tolerance to environmental factors on seed germination of C...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Leal LC,Meiado MV,Lopes AV,Leal IR

更新日期：2013-09-01 00:00:00

abstract：:The present study was designed to investigate the ameliorative potential of Ocimum sanctum and its saponin rich fraction in chronic constriction injury-induced neuropathic pain in rats. The chronic constriction injury was induced by placing four loose ligatures around the sciatic nerve, proximal to its trifurcation. T...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Kaur G,Bali A,Singh N,Jaggi AS

更新日期：2015-03-01 00:00:00

abstract：:The objective of this study was to investigate the effects of 2% L-glutamine supplementation on myenteric innervation in the ileum of diabetic rats, grouped as follows: normoglycemic (N); normoglycemic supplemented with L-glutamine (NG); diabetic (D); and diabetic supplemented with L-glutamine (DG). The ileums were su...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Pereira RV,Linden DR,Miranda-Neto MH,Zanoni JN

更新日期：2016-01-01 00:00:00

abstract：:The focus of this study was to test the hypothesis that there would be no difference between the biocompatibility of resin-modified glass ionomer cements. Sixty male Wistar rats were selected and divided into four groups: Control Group; Crosslink Group; RMO Group and Transbond Group. The materials were inserted into r...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Mesquita JA,Lacerda-Santos R,Sampaio GAM,Godoy GP,Nonaka CFW,Alves PM

更新日期：2017-01-01 00:00:00

abstract：:This study covers the evaluation of the structure and the capacity in adsorbing orthophosphate ions of kaolinites collected from sampling sites in Manaus (Brazil). The kaolinites were obtained using physical fractioning (sieving/siphoning) techniques and chemical treatment with HCl, H2SO4, H2O2 and KCl. The investigat...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Silva MSE,Lages AS,Santana GP

更新日期：2017-07-01 00:00:00

abstract：:The in vitro metabolism of a widespread natural product, trachyloban-19-oic acid (1), by the fungal species Mucor plumbeus was studied in a sucrose-yeast liquid medium. Two products were isolated, and their structures were determined by spectroscopic means as 7β-hydroxytrachyloban-19-oic acid (5) and trachyloban-19-O-...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Santos GFD,Takahashi JA

更新日期：2017-01-01 00:00:00

abstract：:Most herbicides applied in crop field, stay in the soil for a period, affecting next crop or even the plants using as green manure. Nowadays, the use of herbicides grow to increase productivity, mainly in the grain producing region north of Rio Grande do Sul state. The objective of this study was to evaluate the effec...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Alves C,Costa E,Sofiatti JR,Forte CT,Winter FL,Holz CM,Kaizer RR,Galon L

更新日期：2018-04-01 00:00:00

abstract：:The South American Pleistocene mammal fauna includes great-sized animals that have intrigued scientists for over two centuries. Here we intend to update the knowledge on its palaeoecology and provide new evidence regarding two approaches: energetics and population density and relative abundance of fossils per taxa. To...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Fariña RA,Czerwonogora A,di Giacomo M

更新日期：2014-03-01 00:00:00

abstract：:The aim of this study was to evaluate the effect of phosphorus (P) on the toxicity of zinc (Zn) for the alga Raphidocelis subcapitata. P was provided in three concentrations: 2.3 x 10-4 mol L-1, 2.3 x 10-6 mol L-1 and 1.0 x 10-6 mol L-1. Algal cells were acclimated to the specific P concentrations before the start of ...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Rodgher S,Contador TM,Rocha GS,Espindola ELG

更新日期：2020-11-06 00:00:00

abstract：:In some previous studies, we described the isolation of nine compounds from leaves of Derris urucu, a species found widely in the Amazon rainforest, identified as five stilbenes and four dihydroflavonols. In this work, three of these dihydroflavonols [urucuol A (1), urucuol B (2) and isotirumalin (3)] were evaluated t...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Silva EA,Lôbo LT,Silva GA,Souza Filho AP,Da Silva MN,Arruda AC,Guilhon GM,Santos LS,Arruda MS

更新日期：2013-09-01 00:00:00

abstract：:This paper presents a sedimentological and stratigraphical study of Quaternary (Middle to Late Pleistocene/Holocene) continental carbonates outcrops inside Pantanal Basin and its surroundings, especially in Serra da Bodoquena, Pantanal do Miranda and Corumbá/Ladário plateau, in the state of Mato Grosso do Sul, as well...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Oliveira EC,Rossetti DF,Utida G

更新日期：2017-05-01 00:00:00

abstract：:Obligatory intracellular parasites such as Plasmodium sp, Trypanosoma cruzi, Toxoplasma gondii and Leishmania sp are responsible for the infection of hundreds of millions of individuals every year. These parasites can deliver antigens to the host cell cytoplasm that are presented through MHC class I molecules to prote...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Rodrigues MM,Boscardin SB,Vasconcelos JR,Hiyane MI,Salay G,Soares IS

更新日期：2003-12-01 00:00:00

abstract：:This work was carried out in two small fishing communities, Barra de Mamanguape and Tramataia, Northeastern Brazil. The aim was to study these traditional fishermen's knowledge and perception about tide and wind classifications, as well as their fishing strategies and techniques. Our research methodology involved vari...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Bezerra DM,Nascimento DM,Ferreira EN,Rocha PD,Mourão JS

更新日期：2012-09-01 00:00:00

abstract：:Eimeriosis is caused by a protozoan parasite of the genus Eimeria and infection affecting most domestic animal species. The aim of this research was to comprehend the impact of selenium nanoparticles (SeNPs) on eimeriosis induced by Eimeria papillata in mouse jejunum, and how they work as antioxidants and anti-apoptot...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Alkhudhayri A,Al-Shaebi EM,Qasem MAA,Murshed M,Mares MM,Al-Quraishy S,Dkhil MA

更新日期：2020-06-03 00:00:00

abstract：:The centesimal composition and the physical and chemical analyses of Lentinus strigosus, an edible mushroom occurring in the Brazilian Amazon and produced in alternative substrates based on wood and agroindustrial residues, were evaluated. For this purpose, the C, N, pH, soluble solids, water activity, protein, lipids...

journal_title：Anais da Academia Brasileira de Ciencias

authors： Sales-Campos C,Araujo LM,Minhoni MT,Andrade MC

更新日期：2013-01-01 00:00:00