Centro Universitario Of Caratinga

Nossa Senhora das Dores, Brazil

Centro Universitario Of Caratinga

Nossa Senhora das Dores, Brazil
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Silva E.T.,Centro Universitario Of Caratinga | Silva E.T.,Federal University of Minas Gerais | Santos P.S.,Federal University of Minas Gerais | Coelho H.L.,Rua Vereador Lindolfo Soares de Carvalho 106 | And 3 more authors.
Check List | Year: 2013

Herein we provide new records of the leaf litter frogs Ischnocnema verrucosa and I. surda for the state of Minas Gerais, Southeast of Brazil. Our records fill the current gap in the geographic distribution of I. verrucosa in the east of Minas Gerais, and extend the distribution of I. surda in about 117 km straight southeast of its type locality. We also provide discussions regarding diagnose characters of I. surda. © 2013 Check List and Authors.

Rocha L.L.V.,Federal University of Viçosa | Rocha L.L.V.,Centro Universitario Of Caratinga | Neves C.A.,Federal University of Viçosa | Zanuncio J.C.,Federal University of Viçosa | Serrao J.E.,Federal University of Viçosa
Comptes Rendus - Biologies | Year: 2010

Triatoma vitticeps (Stal, 1859) is a hematophagous Hemiptera that, although being considered wild, can be found in households, being a potential Chagas' disease vector. This work describes the histology and ultrastructure of the midgut of T. vitticeps under different starvation periods. Fifteen adults of both sexes starved for 3, 7, 20 and 25 days were studied. In general, digestive cells had apical microvilli, basal plasma membrane infoldings and central nucleus. The perimicrovillar membrane was found in all insects examined. Digestive cells of anterior midgut had lipid droplets, glycogen granules, developed basal labyrinth associated with mitochondria suggesting their role in nutrient storage and in fluid and ion transport. The cells ofmedian and posterior regions of the midgut were rich in rough endoplasmic reticulum, lysosomes, vesicles and granules with different electrondensities. Moreover, cells of the posterior portion of the midgut had hemozoyn granules and mitochondria in the apical cytoplasm close tomicrovilli, suggesting their role in blood digestion and active nutrient absorption. The midgut of T. vitticeps showed differences in digestive cells associated with the time after feeding, and the increase of vesicles amount in long starvation periods, which suggests enzyme storage, which is readily used after a blood meal. © 2010 Académie des sciences.

Brandao P.C.,Centro Universitario Of Caratinga | Soares V.P.,Federal University of Viçosa | Simas F.N.B.,Federal University of Viçosa | Schaefe C.E.G.R.,Federal University of Viçosa | And 2 more authors.
Revista Arvore | Year: 2010

The lack of basic studies for the elaboration of management plans has delayed the effective implementation of conservation units in the Amazon region. In this work, the interpretation of orbital and sub-orbital images, together with field surveys were used for the geoenvironmental characterization of the Purus National Forest (PNF). A georreferenced digital database composed of thematic maps was produced and constitutes the base of a GIS for the PNF. Four geoenvironments were identified and mapped: Dissecated Plateaux with forest vegetation on Latosols and Argisols; Forested slopes on Argisols; Alluvial plains with eutric soils; Alluvial plains with dystric soils. The holocenic alluviums influenced by the Purus River are eutric, and receive sub-Andenean sediments. On the other hand, most of the PNF has extremely poor and acid soils related to the Solimões Formation. Since the nutrient levels in the mineral substrate are very low, the management of these areas should seek the increment of biomass in the system, which would enhance nutrient cycling by the vegetation since the nutrient levels in the mineral substrate are very low.

Anconi C.P.A.,Federal University of Lavras | Da Silva Delgado L.,Centro Universitario Of Caratinga | Alves Dos Reis J.B.,Centro Universitario Of Caratinga | De Almeida W.B.,Campus Universitario | And 2 more authors.
Chemical Physics Letters | Year: 2011

Quantum mechanics theoretical methodology has been applied in order to access and compare the relative stability of inclusion compounds formed by α-CD and the platinum (II) based drugs carboplatin, oxaliplatin and nedaplatin. The relative stability of the studied inclusion compounds has been discussed based on the number and type of hydrogen bonds identified between host and guest molecules. The evaluated energies at B3LYP/6-31G level of theory strongly indicates that α-CD forms stable supramolecular systems with all studied cisplatin analogues, being the carboplatin α-CD found as the most favorable inclusion complex among the platinum (II) derivatives studied in the present paper. © 2011 Elsevier B.V. All rights reserved.

Valverde C.N.L.,Centro Universitario Of Caratinga | Nacif T.C.B.,Centro Universitario Of Caratinga | Freitas H.O.,Centro Universitario Of Caratinga | Queiroga T.M.,Centro Universitario Of Caratinga | Bomfim-Pereira M.G.,Setor de Plastica Ocular
Revista Brasileira de Oftalmologia | Year: 2016

To determine the prevalence of low vision in a fraction of the students in public schools at Caratinga, Minas Gerais. Moreover, show the relevance of preventive measuresto evaluate Visual Acuity (VA) in children up to 7 years old. Methods: A transversal study was made in students, between 4 and 7 years old, enrolled in first and second year of elementary school of Geraldo Marques Cevidanes Municipal School, in the city of Caratinga, Minas Gerais.VA was evaluated using Snellen optometric chart and considered normal when higher than 0,7. Students who had difficulty in being evaluated or had presented VA less than 0,7 were referred to an ophthalmologist. Results: One hundred-eighteen children were evaluated. Five percent (5%) of the sample had low VA, being 16,6% only in the left eye, 33,3% in the right eye and 50% bilateral. 66,6% of students with visual impairment required the prescription glasses. Conclusion: This study meets national research regarding the prevalence of low VA, however, doesn't match with others studies. It is suggested that projects to prevent eye health in children are important not only medically, but also socially.

da Silva E.T.,Centro Universitario Of Caratinga | Coelho H.L.,Grupo de Pesquisas Paleoarqueologicas Fossilis | de Souza Viana R.,Centro Universitario Of Caratinga | da Silva Santos P.,Federal University of Minas Gerais
Check List | Year: 2011

We provide new records of the recently described frog Physalaemus feioi in the state of Minas Gerais, southeastern Brazil. Records presented here extend the distribution of P. feioi around 113 km straight north from Parque Estadual da Serra do Brigadeiro, the previously northernmost known record for the species. © 2011 Check List and Authors.

Silva S.O.,Centro Universitario Of Caratinga | Ferreira R.L.C.,University of Pernambuco | da Silva J.A.A.,University of Pernambuco | Lira M.A.,EMBRAPA - Empresa Brasileira de Pesquisa Agropecuária | And 3 more authors.
Revista Arvore | Year: 2012

The objective of this work was to compare a natural regeneration of two areas with Caatinga vegetation with different histories of use in the Agreste of Pernambuco. These studies were carried out in two areas: Area l, native forest, with no historical evidences of deforestation for agriculture purposes; and Area ll, which was previously occupied with the cultivation of forage cactus and was abandoned about 30 years ago at the stage of secondary succession. For data collection, it was used a total of 24 plots of 5 x 5 m dimensions, 12 plots in each area, and considering the plants with circumference at breast height (CBH) of 1.30 m from ground (CAP) < 6.0 cm and height ≥1.0 m as individuals in natural regeneration. It was identified in the structure survey of regenerating individuals structural survey in both areas, 581 plants of 14 botanical families, 26 genus and 30 species. The total densities obtained in this study were 11,200 and 8,116 individuals.ha-1 in Area l and ll, respectively. The species with the greatest densities of natural regeneration in Area l were the following: Croton argyrophyllus, Senegalia bahiensis, Croton blanchetianus and Coutarea hexandra and in the Area ll: Senegalia bahiensis, Poincianella pyramidalis, Zanthoxyllum sp, Croton blanchetianus and Croton argyrophyllus.

Santos P.S.,Federal University of Minas Gerais | da Silva E.T.,Centro Universitario Of Caratinga | Fehlberg B.H.B.,Federal University of Minas Gerais | Santos M.T.T.,Federal University of Minas Gerais | And 2 more authors.
Check List | Year: 2012

We report new records for the poorly known species Hylodes babax (fourth record), Dendropsophus ruschii (fourth record) and Bokermannohyla ibitipoca (fifth record), from an Atlantic Forest fragment in the eastern region of the Mantiqueira mountain range in Minas Gerais, Brazil. © 2012 Check List and Authors.

Santos P.S.,Federal University of Minas Gerais | da Silva E.T.,Centro Universitario Of Caratinga | Felhberg B.H.B.,Federal University of Minas Gerais | Santos M.T.T.,Federal University of Minas Gerais | Garcia P.C.A.,Federal University of Minas Gerais
Check List | Year: 2011

In this study we report the first record of the giant torrent frog Megaelosia apuana in the state of Minas Gerais, southeastern Brazil. The finding of this species at Reserva Particular do Patrimônio Natural (RPPN) Mata do Sossego, municipality of Simonésia, east of Minas Gerais extends its geographic distribution by 120 km from the type locality, and 45 km northwest from its westernmost known record. A geographic distribution map is presented. © 2011 Check List and Authors.

de Paula Carli A.,Federal University of Ouro Preto | de Paula Carli A.,Centro Universitario Of Caratinga | de Abreu Vieira P.M.,Federal University of Ouro Preto | Silva K.T.S.,Federal University of Ouro Preto | And 4 more authors.
Food and Chemical Toxicology | Year: 2012

Bowman-Birk inhibitors (BBIs) are protein molecules containing two inhibitory domains for enzymes similar to trypsin and chymotrypsin. Interest in these inhibitors arose from their properties against the cancer chemically induced by 1,2-dimethylhydrazine (DMH). In this study the effect of two BBI preparations (from Glycine max and Macrotyloma axillare) were evaluated for the prevention of colorectal neoplasia induced by intraperitoneal injections of DMH, given at a dose of 30. mg/kg, during 12. weeks. Mice treated with DMH presented histopathological alterations consistent with tumor development, augmented CD44 expression and increased proteasome peptidase activities. Lysosomal fractions, obtained from the intestines, were chromatographed in a Sepharose-BBI column and increased activity for trypsin and chymotrypsin-like proteases recovered from DMH-treated animals. In parallel, mice treated for eight weeks with BBIs showed a decrease in the chymotrypsin and trypsin-like proteasome activities compared to animals fed on normal diet. For the groups receiving simultaneous treatment with DMH and BBIs, dysplasic lesions were not observed and proteasome peptidase activities were similar to the control group after the 24th week. These results suggest that the mechanism by which BBIs could prevent the appearance of pre neoplastic lesions is associated with inhibition of both the lysosomal and proteasome-dependent proteolytic pathways. © 2012 Elsevier Ltd.

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