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Catálogo Taxonômico da Fauna do Brasil: Setting the baseline knowledge on the animal diversity in Brazil Brasil
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Boeger, Walter A.
; Valim, Michel P.
; Zaher, Hussam
; Rafael, José A.
; Forzza, Rafaela C.
; Percequillo, Alexandre R.
; Serejo, Cristiana S.
; Garraffoni, André R.S.
; Santos, Adalberto J.
; Slipinski, Adam
; Linzmeier, Adelita M.
; Calor, Adolfo R.
; Garda, Adrian A.
; Kury, Adriano B.
; Fernandes, Agatha C.S.
; Agudo-Padrón, Aisur I.
; Akama, Alberto
; Silva Neto, Alberto M. da
; Burbano, Alejandro L.
; Menezes, Aleksandra
; Pereira-Colavite, Alessandre
; Anichtchenko, Alexander
; Lees, Alexander C.
; Bezerra, Alexandra M.R.
; Domahovski, Alexandre C.
; Pimenta, Alexandre D.
; Aleixo, Alexandre L.P.
; Marceniuk, Alexandre P.
; Paula, Alexandre S. de
; Somavilla, Alexandre
; Specht, Alexandre
; Camargo, Alexssandro
; Newton, Alfred F.
; Silva, Aline A.S. da
; Santos, Aline B. dos
; Tassi, Aline D.
; Aragão, Allan C.
; Santos, Allan P.M.
; Migotto, Alvaro E.
; Mendes, Amanda C.
; Cunha, Amanda
; Chagas Júnior, Amazonas
; Sousa, Ana A.T. de
; Pavan, Ana C.
; Almeida, Ana C.S.
; Peronti, Ana L.B.G.
; Henriques-Oliveira, Ana L.
; Prudente, Ana L.
; Tourinho, Ana L.
; Pes, Ana M.O.
; Carmignotto, Ana P.
; Wengrat, Ana P.G. da Silva
; Dornellas, Ana P.S.
; Molin, Anamaria Dal
; Puker, Anderson
; Morandini, André C.
; Ferreira, André da S.
; Martins, André L.
; Esteves, André M.
; Fernandes, André S.
; Roza, André S.
; Köhler, Andreas
; Paladini, Andressa
; Andrade, Andrey J. de
; Pinto, Ângelo P.
; Salles, Anna C. de A.
; Gondim, Anne I.
; Amaral, Antonia C.Z.
; Rondón, Antonio A.A.
; Brescovit, Antonio
; Lofego, Antônio C.
; Marques, Antonio C.
; Macedo, Antonio
; Andriolo, Artur
; Henriques, Augusto L.
; Ferreira Júnior, Augusto L.
; Lima, Aurino F. de
; Barros, Ávyla R. de A.
; Brito, Ayrton do R.
; Romera, Bárbara L.V.
; Vasconcelos, Beatriz M.C. de
; Frable, Benjamin W.
; Santos, Bernardo F.
; Ferraz, Bernardo R.
; Rosa, Brunno B.
; Sampaio, Brunno H.L.
; Bellini, Bruno C.
; Clarkson, Bruno
; Oliveira, Bruno G. de
; Corrêa, Caio C.D.
; Martins, Caleb C.
; Castro-Guedes, Camila F. de
; Souto, Camilla
; Bicho, Carla de L.
; Cunha, Carlo M.
; Barboza, Carlos A. de M.
; Lucena, Carlos A.S. de
; Barreto, Carlos
; Santana, Carlos D.C.M. de
; Agne, Carlos E.Q.
; Mielke, Carlos G.C.
; Caetano, Carlos H.S.
; Flechtmann, Carlos H.W.
; Lamas, Carlos J.E.
; Rocha, Carlos
; Mascarenhas, Carolina S.
; Margaría, Cecilia B.
; Waichert, Cecilia
; Digiani, Celina
; Haddad, Célio F.B.
; Azevedo, Celso O.
; Benetti, Cesar J.
; Santos, Charles M.D. dos
; Bartlett, Charles R.
; Bonvicino, Cibele
; Ribeiro-Costa, Cibele S.
; Santos, Cinthya S.G.
; Justino, Cíntia E.L.
; Canedo, Clarissa
; Bonecker, Claudia C.
; Santos, Cláudia P.
; Carvalho, Claudio J.B. de
; Gonçalves, Clayton C.
; Galvão, Cleber
; Costa, Cleide
; Oliveira, Cléo D.C. de
; Schwertner, Cristiano F.
; Andrade, Cristiano L.
; Pereira, Cristiano M.
; Sampaio, Cristiano
; Dias, Cristina de O.
; Lucena, Daercio A. de A.
; Manfio, Daiara
; Amorim, Dalton de S.
; Queiroz, Dalva L. de
; Queiroz, Dalva L. de
; Colpani, Daniara
; Abbate, Daniel
; Aquino, Daniel A.
; Burckhardt, Daniel
; Cavallari, Daniel C.
; Prado, Daniel de C. Schelesky
; Praciano, Daniel L.
; Basílio, Daniel S.
; Bená, Daniela de C.
; Toledo, Daniela G.P. de
; Takiya, Daniela M.
; Fernandes, Daniell R.R.
; Ament, Danilo C.
; Cordeiro, Danilo P.
; Silva, Darliane E.
; Pollock, Darren A.
; Muniz, David B.
; Gibson, David I.
; Nogueira, David S.
; Marques, Dayse W.A.
; Lucatelli, Débora
; Garcia, Deivys M.A.
; Baêta, Délio
; Ferreira, Denise N.M.
; Rueda-Ramírez, Diana
; Fachin, Diego A.
; Souza, Diego de S.
; Rodrigues, Diego F.
; Pádua, Diego G. de
; Barbosa, Diego N.
; Dolibaina, Diego R.
; Amaral, Diogo C.
; Chandler, Donald S.
; Maccagnan, Douglas H.B.
; Caron, Edilson
; Carvalho, Edrielly
; Adriano, Edson A.
; Abreu Júnior, Edson F. de
; Pereira, Edson H.L.
; Viegas, Eduarda F.G.
; Carneiro, Eduardo
; Colley, Eduardo
; Eizirik, Eduardo
; Santos, Eduardo F. dos
; Shimbori, Eduardo M.
; Suárez-Morales, Eduardo
; Arruda, Eliane P. de
; Chiquito, Elisandra A.
; Lima, Élison F.B.
; Castro, Elizeu B. de
; Orlandin, Elton
; Nascimento, Elynton A. do
; Razzolini, Emanuel
; Gama, Emanuel R.R.
; Araujo, Enilma M. de
; Nishiyama, Eric Y.
; Spiessberger, Erich L.
; Santos, Érika C.L. dos
; Contreras, Eugenia F.
; Galati, Eunice A.B.
; Oliveira Junior, Evaldo C. de
; Gallardo, Fabiana
; Hernandes, Fabio A.
; Lansac-Tôha, Fábio A.
; Pitombo, Fabio B.
; Dario, Fabio Di
; Santos, Fábio L. dos
; Mauro, Fabio
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; Olmos, Fabio
; Amaral, Fabio R.
; Schunck, Fabio
; Godoi, Fábio S. P. de
; Machado, Fabrizio M.
; Barbo, Fausto E.
; Agrain, Federico A.
; Ribeiro, Felipe B.
; Moreira, Felipe F.F.
; Barbosa, Felipe F.
; Silva, Fenanda S.
; Cavalcanti, Fernanda F.
; Straube, Fernando C.
; Carbayo, Fernando
; Carvalho Filho, Fernando
; Zanella, Fernando C.V.
; Jacinavicius, Fernando de C.
; Farache, Fernando H.A.
; Leivas, Fernando
; Dias, Fernando M.S.
; Mantellato, Fernando
; Vaz-de-Mello, Fernando Z.
; Gudin, Filipe M.
; Albuquerque, Flávio
; Molina, Flavio B.
; Passos, Flávio D.
; Shockley, Floyd W.
; Pinheiro, Francielly F.
; Mello, Francisco de A.G. de
; Nascimento, Francisco E. de L.
; Franco, Francisco L.
; Oliveira, Francisco L. de
; Melo, Francisco T. de V.
; Quijano, Freddy R.B.
; Salles, Frederico F.
; Biffi, Gabriel
; Queiroz, Gabriel C.
; Bizarro, Gabriel L.
; Hrycyna, Gabriela
; Leviski, Gabriela
; Powell, Gareth S.
; Santos, Geane B. dos
; Morse, Geoffrey E.
; Brown, George
; Mattox, George M.T.
; Zimbrão, Geraldo
; Carvalho, Gervásio S.
; Miranda, Gil F.G.
; Moraes, Gilberto J. de
; Lourido, Gilcélia M.
; Neves, Gilmar P.
; Moreira, Gilson R.P.
; Montingelli, Giovanna G.
; Maurício, Giovanni N.
; Marconato, Gláucia
; Lopez, Guilherme E.L.
; Silva, Guilherme L. da
; Muricy, Guilherme
; Brito, Guilherme R.R.
; Garbino, Guilherme S.T.
; Flores, Gustavo E.
; Graciolli, Gustavo
; Libardi, Gustavo S.
; Proctor, Heather C.
; Gil-Santana, Helcio R.
; Varella, Henrique R.
; Escalona, Hermes E.
; Schmitz, Hermes J.
; Rodrigues, Higor D.D.
; Galvão Filho, Hilton de C.
; Quintino, Hingrid Y.S.
; Pinto, Hudson A.
; Rainho, Hugo L.
; Miyahira, Igor C.
; Gonçalves, Igor de S.
; Martins, Inês X.
; Cardoso, Irene A.
; Oliveira, Ismael B. de
; Franz, Ismael
; Fernandes, Itanna O.
; Golfetti, Ivan F.
; S. Campos-Filho, Ivanklin
; Oliveira, Ivo de S.
; Delabie, Jacques H.C.
; Oliveira, Jader de
; Prando, Jadila S.
; Patton, James L.
; Bitencourt, Jamille de A.
; Silva, Janaina M.
; Santos, Jandir C.
; Arruda, Janine O.
; Valderrama, Jefferson S.
; Dalapicolla, Jeronymo
; Oliveira, Jéssica P.
; Hájek, Jiri
; Morselli, João P.
; Narita, João P.
; Martin, João P.I.
; Grazia, Jocélia
; McHugh, Joe
; Cherem, Jorge J.
; Farias Júnior, José A.S.
; Fernandes, Jose A.M.
; Pacheco, José F.
; Birindelli, José L.O.
; Rezende, José M.
; Avendaño, Jose M.
; Duarte, José M. Barbanti
; Ribeiro, José R. Inácio
; Mermudes, José R.M.
; Pujol-Luz, José R.
; Santos, Josenilson R. dos
; Câmara, Josenir T.
; Teixeira, Joyce A.
; Prado, Joyce R. do
; Botero, Juan P.
; Almeida, Julia C.
; Kohler, Julia
; Gonçalves, Julia P.
; Beneti, Julia S.
; Donahue, Julian P.
; Alvim, Juliana
; Almeida, Juliana C.
; Segadilha, Juliana L.
; Wingert, Juliana M.
; Barbosa, Julianna F.
; Ferrer, Juliano
; Santos, Juliano F. dos
; Kuabara, Kamila M.D.
; Nascimento, Karine B.
; Schoeninger, Karine
; Campião, Karla M.
; Soares, Karla
; Zilch, Kássia
; Barão, Kim R.
; Teixeira, Larissa
; Sousa, Laura D. do N.M. de
; Dumas, Leandro L.
; Vieira, Leandro M.
; Azevedo, Leonardo H.G.
; Carvalho, Leonardo S.
; Souza, Leonardo S. de
; Rocha, Leonardo S.G.
; Bernardi, Leopoldo F.O.
; Vieira, Letícia M.
; Johann, Liana
; Salvatierra, Lidianne
; Oliveira, Livia de M.
; Loureiro, Lourdes M.A. El-moor
; Barreto, Luana B.
; Barros, Luana M.
; Lecci, Lucas
; Camargos, Lucas M. de
; Lima, Lucas R.C.
; Almeida, Lucia M.
; Martins, Luciana R.
; Marinoni, Luciane
; Moura, Luciano de A.
; Lima, Luciano
; Naka, Luciano N.
; Miranda, Lucília S.
; Salik, Lucy M.
; Bezerra, Luis E.A.
; Silveira, Luis F.
; Campos, Luiz A.
; Castro, Luiz A.S. de
; Pinho, Luiz C.
; Silveira, Luiz F.L.
; Iniesta, Luiz F.M.
; Tencatt, Luiz F.C.
; Simone, Luiz R.L.
; Malabarba, Luiz R.
; Cruz, Luiza S. da
; Sekerka, Lukas
; Barros, Lurdiana D.
; Santos, Luziany Q.
; Skoracki, Maciej
; Correia, Maira A.
; Uchoa, Manoel A.
; Andrade, Manuella F.G.
; Hermes, Marcel G.
; Miranda, Marcel S.
; Araújo, Marcel S. de
; Monné, Marcela L.
; Labruna, Marcelo B.
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; Knoff, Marcelo
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; Tavares, Marcelo T.
; Kitahara, Marcelo V.
; Justo, Marcia C.N.
; Botelho, Marcia J.C.
; Couri, Márcia S.
; Borges-Martins, Márcio
; Felix, Márcio
; Oliveira, Marcio L. de
; Bologna, Marco A.
; Gottschalk, Marco S.
; Tavares, Marcos D.S.
; Lhano, Marcos G.
; Bevilaqua, Marcus
; Santos, Marcus T.T.
; Domingues, Marcus V.
; Sallum, Maria A.M.
; Digiani, María C.
; Santarém, Maria C.A.
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; Becerril, María de los A.M.
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; Passos, Maria I. da S. dos
; Felippe-Bauer, Maria L.
; Cherman, Mariana A.
; Terossi, Mariana
; Bartz, Marie L.C.
; Barbosa, Marina F. de C.
; Loeb, Marina V.
; Cohn-Haft, Mario
; Cupello, Mario
; Martins, Marlúcia B.
; Christofersen, Martin L.
; Bento, Matheus
; Rocha, Matheus dos S.
; Martins, Maurício L.
; Segura, Melissa O.
; Cardenas, Melissa Q.
; Duarte, Mércia E.
; Ivie, Michael A.
; Mincarone, Michael M.
; Borges, Michela
; Monné, Miguel A.
; Casagrande, Mirna M.
; Fernandez, Monica A.
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; Benaim, Natalia P.
; Reategui, Natália S.
; Pedro, Natan C.
; Pecly, Nathalia H.
; Ferreira Júnior, Nelson
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; Perioto, Nelson W.
; Hamada, Neusa
; Degallier, Nicolas
; Chao, Ning L.
; Ferla, Noeli J.
; Mielke, Olaf H.H.
; Evangelista, Olivia
; Shibatta, Oscar A.
; Oliveira, Otto M.P.
; Albornoz, Pablo C.L.
; Dellapé, Pablo M.
; Gonçalves, Pablo R.
; Shimabukuro, Paloma H.F.
; Grossi, Paschoal
; Rodrigues, Patrícia E. da S.
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; Gnaspini, Pedro
; Souza-Dias, Pedro G.B.
; Linardi, Pedro M.
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; Demite, Peterson R.
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; Falaschi, Rafaela L.
; Cordeiro, Ralf T.S.
; Mello, Ramon J.C.L.
; Singer, Randal A.
; Querino, Ranyse B.
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; Silva, Ricardo B.
; Kawada, Ricardo
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; Feitosa, Rodrigo M.
; Hutchings, Roger W.
; Lara, Rogéria I.R.
; Rossi, Rogério V.
; Gerstmeier, Roland
; Ochoa, Ronald
; Hutchings, Rosa S.G.
; Ale-Rocha, Rosaly
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; Tidon, Rosana
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; Gardner, Scott L.
; Leal, Sebastián A. Muñoz
; Aloquio, Sergio
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; Andena, Sérgio R.
; Posso, Sergio R.
; Lima, Sheila P.
; Gadelha, Sian de S.
; Thiengo, Silvana C.
; Cohen, Simone C.
; Brandão, Simone N.
; Rosa, Simone P.
; Ribeiro, Síria L.B.
; Letana, Sócrates D.
; Santos, Sonia B. dos
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; Dávila, Stephane
; Vaz, Stéphanie
; Peck, Stewart B.
; Christo, Susete W.
; Cunha, Suzan B.Z.
; Gomes, Suzete R.
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; Sepulveda, Tatiana A.
; Maria, Tatiana F.
; Ruschel, Tatiana P.
; Rodrigues, Thaiana
; Marinho, Thais A.
; Almeida, Thaís M. de
; Miranda, Thaís P.
; Freitas, Thales R.O.
; Pereira, Thalles P.L.
; Zacca, Thamara
; Pacheco, Thaynara L.
; Martins, Thiago F.
; Alvarenga, Thiago M.
; Carvalho, Thiago R. de
; Polizei, Thiago T.S.
; McElrath, Thomas C.
; Henry, Thomas
; Pikart, Tiago G.
; Porto, Tiago J.
; Krolow, Tiago K.
; Carvalho, Tiago P.
; Lotufo, Tito M. da C.
; Caramaschi, Ulisses
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; Pardiñas, Ulyses F.J.
; Maia, Valéria C.
; Tavares, Valeria
; Costa, Valmir A.
; Amaral, Vanessa S. do
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; Wolff, Vera R. dos S.
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; Padula, Vinícius
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; Silva, Vitor C.P. da
; Piacentini, Vítor de Q.
; Sandoval-Gómez, Vivian E.
; Trevine, Vivian
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; Sant’Anna, Vivianne B. de
; Mathis, Wayne N.
; Souza, Wesley de O.
; Colombo, Wesley D.
; Tomaszewska, Wioletta
; Wosiacki, Wolmar B.
; Ovando, Ximena M.C.
; Leite, Yuri L.R.
.
ABSTRACT The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian megadiverse fauna is no exception, and the Catálogo Taxonômico da Fauna do Brasil (CTFB) (http://fauna.jbrj.gov.br/), made public in 2015, represents a database on biodiversity anchored on a list of valid and expertly recognized scientific names of animals in Brazil. The CTFB is updated in near real time by a team of more than 800 specialists. By January 1, 2024, the CTFB compiled 133,691 nominal species, with 125,138 that were considered valid. Most of the valid species were arthropods (82.3%, with more than 102,000 species) and chordates (7.69%, with over 11,000 species). These taxa were followed by a cluster composed of Mollusca (3,567 species), Platyhelminthes (2,292 species), Annelida (1,833 species), and Nematoda (1,447 species). All remaining groups had less than 1,000 species reported in Brazil, with Cnidaria (831 species), Porifera (628 species), Rotifera (606 species), and Bryozoa (520 species) representing those with more than 500 species. Analysis of the CTFB database can facilitate and direct efforts towards the discovery of new species in Brazil, but it is also fundamental in providing the best available list of valid nominal species to users, including those in science, health, conservation efforts, and any initiative involving animals. The importance of the CTFB is evidenced by the elevated number of citations in the scientific literature in diverse areas of biology, law, anthropology, education, forensic science, and veterinary science, among others. publications problem uptodate up date classifications context exception (CTFB http//fauna.jbrj.gov.br/, httpfaunajbrjgovbr http //fauna.jbrj.gov.br/ , jbrj gov br (http://fauna.jbrj.gov.br/) 2015 Brazil 80 specialists 1 2024 133691 133 691 133,69 125138 125 138 125,13 82.3%, 823 82 3 (82.3% 102000 102 000 102,00 7.69%, 769 7 69 (7.69% 11000 11 11,00 . 3,567 3567 567 (3,56 2,292 2292 2 292 (2,29 1,833 1833 833 (1,83 1,447 1447 447 (1,44 1000 1,00 831 (83 628 (62 606 (60 520 (52 50 users science health biology law anthropology education others http//fauna.jbrj.gov.br/ faunajbrjgovbr //fauna.jbrj.gov.br (http://fauna.jbrj.gov.br/ 201 8 202 13369 13 133,6 12513 12 125,1 82.3% (82.3 10200 10 00 102,0 7.69% 76 6 (7.69 1100 11,0 3,56 356 56 (3,5 2,29 229 29 (2,2 1,83 183 83 (1,8 1,44 144 44 (1,4 100 1,0 (8 62 (6 60 52 (5 5 http//fauna.jbrj.gov.br (http://fauna.jbrj.gov.br 20 1336 133, 1251 125, 82.3 (82. 1020 0 102, 7.69 (7.6 110 11, 3,5 35 (3, 2,2 22 (2, 1,8 18 (1, 1,4 14 4 ( 82. (82 7.6 (7. 3, (3 2, (2 (1 7. (7
2.
The Impact of the Second Wave of COVID-19 Pandemic on the Level of Satisfaction of Patients in a Gastroenterology Unit
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Abstract Introduction: Currently, wherever you are in the world, the COVID-19 pandemic has had a global impact on every human being. This pandemic has had major consequences on the majority of the population, increasing feelings of instability, distrust and tension in access to health care. This study aimed to assess the level of satisfaction and the feeling of safety of clients who underwent endoscopic exams at a Gastroenterology unit during the second wave of the COVID-19 pandemic, as well as the impact of the measures taken to mitigate the influence of this circumstance on the experience of patients. Methods: A closed clinical interview made up of 10 questions focused on the feeling of safety and user satisfaction. Sixty individuals were interviewed, selected randomly, after using the Gastroenterology unit to perform endoscopic exams. Inclusion criteria were: age over 18, minimum education level, without cognitive or cerebral impairment. Results: The results have shown that, in general, users are satisfied with having done the exams (90%). However, some of the patients showed some concern before doing them (45%). Due to the equipment used in the context of the pandemic, some patients experienced difficulties in communicating with health professionals (63.3%). In spite of this, they felt confident and safe in carrying out the exams (66.9%), as well as safe in the hygienic conditions of the unit (58.3%). Conclusion: Despite the context of insecurity, tension and instability, the measures taken and the approach of the unit's professionals managed to transmit safety and tranquillity in the performance of the exams, enhancing a good level of patient satisfaction.
Resumo Introdução: Atualmente, em qualquer ponto do mundo, a pandemia pela COVID-19 não é indiferente a nenhum indivíduo. Esta pandemia teve um grande impacto na maioria da população, potenciando um sentimento de instabilidade, desconfiança e tensão no acesso aos cuidados de saúde. Este trabalho teve como objetivo avaliar o nível de satisfação e o sentimento de segurança de utentes que realizaram exames endoscópicos num serviço de Gastrenterologia durante a segunda vaga da pandemia por COVID-19, bem como o impacto das medidas instituídas para mitigar a influência dessa circunstância na experiência dos utentes. Métodos: Foi construída uma entrevista clínica fechada composta por 10 perguntas focadas no sentimento de segurança e satisfação dos utentes. Foram entrevistados 60 indivíduos, selecionados de forma aleatória, após o seu recurso ao serviço de Gastrenterologia para realizar exames endoscópicos. Os critérios de inclusão foram: maiores de 18 anos, nível de escolaridade mínima, sem comprometimento cognitivo ou cerebral. Resultados: Os resultados mostraram que, de uma forma geral, os utentes se encontram satisfeitos por terem feito os exames (90%), no entanto algumas destas pessoas demonstraram alguma inquietação antes de o fazerem (45%). Apesar de, devido aos equipamentos usados em contexto de pandemia, terem sentido algumas dificuldades na comunicação com os profissionais de saúde (63,3%), os utentes sentiram confiança e segurança na realização do exame (66,9 %), bem como nas condições de higiene da unidade (58,3%). Conclusão: Não obstante o contexto propício a sentimentos de insegurança, tensão e instabilidade, as medidas instituídas e a atitude dos profissionais da unidade conseguiram transmitir segurança e tranquilidade no desempenho dos exames, potenciando um bom nível de satisfação dos utentes.
3.
COVID-19, diabetes y el sistema inmunológico
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Moreno-González, Janette G.
; Siqueiros-Cendón, Tania
; Moreno-Brito, Verónica
; Licón Trillo, Ángel
; González-Rodríguez, Everardo
; Leal-Berumen, Irene
; Rascón-Cruz, Quintín
.
Abstract In 2019 in Wuhan province, China, an outbreak of atypical pneumonia was reported with similar symptoms to Severe Acute Respiratory Syndrome (SARS), an outbreak reported in 2003, and Middle East Respiratory Syndrome (MERS) reported in Saudi Arabia in 2012. This emerging disease was caused by a novel coronavirus "Severe Acute Respiratory Syndrome Coronavirus 2" (SARS-CoV-2) or also called COVID-19. Which causes severe respiratory problems and various extrapulmonary manifestations. At the moment, the high mortality of COVID-19 has been related to the male sex, older adults (>60 years), and preexisting comorbidities of diabetes, obesity, hypertension, and heart problems. Diabetes is a disease characterized by insulin resistance and loss of β cell function in the pancreas, with an impaired immune system due to chronic inflammation. In patients with severe COVID-19 infection, altered secretion of pro-inflammatory cytokines has been observed, if this infection occurs in a diabetic patient who already has an inflammatory state per se, an exacerbated inflammation and multiorgan failure with fatal consequences can be triggered. Several authors hypothesis suggest that hyperglycemia increases the viral replication in patients “diabetic with COVID-19 infection" is necessary to keep adequate glycemic control. Treatments for COVID-19 had focused on decreasing symptoms, the use of antivirals, anti-inflammatory drugs, monoclonal antibodies and COVID-19 convalescent plasma has shown variable results. A vaccine is needed to control this viral infection, at the moment more than 150 candidates have been developed with efficiency ranges from 70 to 95%, however, the long-term immunity in vaccinated people is still unknown. This review focus on the characteristics of SARS-CoV-2 infection and the immune response in diabetic patients facing COVID-19.
Resumen En el año de 2019 en la provincia de Wuhan, China, se reportó un brote de neumonías atípicas, con síntomas similares a los del Síndrome Respiratorio Agudo Severo (SARS), brote reportado en el 2003, y al Síndrome Respiratorio del Oriente Medio (MERS), brote reportado en 2012 en Arabia Saudita. Esta enfermedad emergente fue causada por el nuevo coronavirus “Síndrome Respiratorio Agudo Severo Coronavirus 2” (SARS-CoV-2) o también denominada COVID-19 del inglés Coronavirus desease 2019, caracterizado por presentar severos problemas respiratorios y diversas manifestaciones extrapulmonares. Al momento se ha reportado una elevada tasa de mortalidad en individuos del sexo masculino, en adultos mayores de 60 años, y en personas con comorbilidades como diabetes obesidad, hipertensión y problemas cardiacos. La diabetes es una enfermedad caracterizada por resistencia a insulina, pérdida de función de células β en el páncreas, y desbalance del sistema inmune por el estado de inflamación crónica. En pacientes graves con COVID-19, se ha observado una secreción alterada de citocinas pro inflamatorias, si esto ocurre en un paciente diabético, que ya tiene un estado inflamatorio per se, se induce inflamación exacerbada y una falla multiorgánica que puede desencadenar en la muerte de los pacientes. Diversos autores señalan como hipótesis que la hiperglicemia favorece la replicación viral, por lo que en un paciente “diabético con infección COVID-19”, es primordial mantener un control glicémico adecuado. Los tratamientos para COVID-19 se han enfocado en disminuir los síntomas, el uso de antivirales, antiinflamatorios, anticuerpos monoclonales y plasma convaleciente COVID-19 ha mostrado resultados variables. Para el control de esta infección viral es necesaria una vacuna, al momento existen más de 150 candidatos, con una eficiencia que va del rango de 70 al 95%, pero aún falta determinar la inmunidad a largo plazo en las personas vacunadas. Esta revisión aborda las características de la infección por SARS-CoV-2 y la respuesta inmunitaria en pacientes diabéticos frente a COVID-19.
https://doi.org/10.21640/ns.v13ie.2751
1236 downloads
4.
Adherencia farmacológica en pacientes con enfermedades reumáticas
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Chapalbay Parreño, Irene Cecilia
; del Pilar Ayala Reinoso, Patricia
; Campos Ruiz, Luis Fernando
; Orna Brito, Víctor Hernán
; Martínez Larrarte, José Pedro
.
ABSTRACT Introduction: rheumatic diseases are a group of about 250 conditions, mostly of a systemic nature that need periodic monitoring and adequate therapeutic control, pharmacological adherence is one of the main bases for the control of these conditions. Objective: determine pharmacological adherence in patients diagnosed with rheumatic diseases. Method: descriptive, cross-sectional study in 78 patients diagnosed with rheumatic diseases who attend the outpatient clinic of the Andean Hospital of Chimborazo. The Morisky Green test will be used to determine the therapeutic adherence and the questionnaire created by Bonilla and Gutierrez to identify the factors that negatively influence the pharmacological adherence of patients with these diseases. Results: mean age of 58.6 years, with a predominance of patients aged 60 years and over (44.87 %) and females (80.77 %). Osteoarthritis (44.87 %), rheumatoid arthritis (29.49 %) and fibromyalgia (19.23 %) were the most represented diseases. Patients with an evolution time between 1 and 4 years (47.44 %) predominated. 47.44 % of cases are not adherent, with patients with gout (80.00 %), osteoarthrosis (68.57 %) and fibromyalgia (66.67 %) standing out in this regard. Conclusions: there is a high percentage of patients with rheumatic disease who are not adherent with their pharmacological treatment, especially in those cases where bone deformities are not as visible as is the case of gout and fibromyalgia.
RESUMEN Introducción: las enfermedades reumáticas son un grupo de alrededor de 250 afecciones, en su mayoría de carácter sistémico que necesitan un seguimiento periódico y un adecuado control terapéutico, la adherencia farmacológica constituye una de las principales bases del control de estas afecciones. Objetivo: determinar la adherencia farmacológica en pacientes con diagnóstico de enfermedades reumáticas. Método: estudio descriptivo, de cohorte transversal en 78 pacientes con diagnóstico de enfermedades reumáticas que acuden a consulta externa del Hospital Andino de Chimborazo. Se utilizará el test de Morisky Green para determinar la adherencia terapéutica y el cuestionario creado por Bonilla y Gutiérrez para identificar los factores que influyen negativamente en la adherencia farmacológica de los pacientes con estas enfermedades. Resultados: promedio de edad de 58.6 años con predominio de pacientes de 60 años o más (44.87 %) y del sexo femenino (80.77 %). La osteoartritis (44.87 %), la artritis reumatoide (29.49 %) y la fibromialgia (19.23 %) fueron las enfermedades más representadas. Predominaron los pacientes con tiempo de evolución entre 1 y 4 años (47.44 %). El 47.44 % de los casos no son adherentes, destacando en ese sentido los pacientes con gota (80.00 %), la osteoartrosis (68.57 %), la fibromialgia (66.67 %). Conclusiones: existe un elevado por ciento de pacientes con enfermedad reumática que no son adherentes con su tratamiento farmacológico, sobre todo en aquellos casos donde las deformidades óseas no son tan visibles como es el caso de la gota y la fibromialgia.
5.
Integrating Science, Technology, Engineering and Mathematics contents through PBL in an Industrial Engineering and Management first year program
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Alves, Anabela Carvalho
; Moreira, Francisco
; Carvalho, Maria Alice
; Oliveira, Sérgio
; Malheiro, Maria Teresa
; Brito, Irene
; Leão, Celina Pinto
; Teixeira, Senhorinha
.
Abstract Paper aims This paper presents teachers and students perspectives of integration Science, Technology, Engineering and Mathematics (STEM) courses contents into the first year of Industrial Engineering and Management (IEM) program through Project-Based Learning (PBL). Originality These perspectives provide strategies that IEM teachers could use to challenge students to apply STEM contents to design a product and its production system by developing a semester interdisciplinary project. Research method Grounded on project deliveries and an on-line questionnaire, the teachers and students’ work and perceptions were analysed in order to understand and to evaluate the effectiveness of such strategies. Main findings Results pointed out a general satisfaction of the teachers with the way teams integrate the STEM contents to design the production system and the product and students proud of their projects. Implications for theory and practice PBL is recognized as an active learning methodology that engages students in their own learning process and allows them to realize the relevance of all courses and the role of each to design a product/production system. Nevertheless, is fundamental a good knowledge of the PBL process to achieve this.
https://doi.org/10.1590/0103-6513.20180111
1104 downloads
6.
Human papillomavirus infection and cervical cancer precursor lesions in women living by Amazon rivers: investigation of relations with markers of oxidative stress
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Borges, Bruna Emanuelle Sanches
; Brito, Elza Baia de
; Fuzii, Hellen Thais
; Baltazar, Cláudia Simone
; Sá, Aline Barreto
; Silva, Camile Irene Mota da
; Santos, Gleyce de Fátima Silva
; Pinheiro, Maria da Conceição Nascimento
.
RESUMO Objetivo Avaliar a relação de marcadores de estresse oxidativo com a infecção pelo papilomavírus humano e as lesões precursoras do câncer cervical. Métodos Foram incluídas mulheres ribeirinhas da Amazônia (a saber: 126 do município de Itaituba, 68 de Limoeiro do Ajuru e 43 de Bragança), todas do Estado do Pará, de 14 a 60 anos. Foram realizados testes Papanicolau e de reação em cadeia de polimerase para a detecção de DNA do papilomavírus humano. Coleta de amostras de sangue foi realizada para a avaliação do malondialdeído e a determinação da glutationa total e oxidada. Resultados As concentrações oxidativas do malondialdeído e os teores de glutationa total e oxidada não apresentaram diferença significativa (p>0,05) nas mulheres com e sem lesão intraepitelial escamosa de baixo grau, em todas as comunidades pesquisadas. Mulheres com papilomavírus humano em Itaituba apresentaram níveis de malondialdeído (8,02nmols/mL) quase cinco vezes maior quando relacionadas àquelas sem o HPV (1,70nmols/mL), com diferença estatística significativa (p<0,05). As outras comunidades não mostraram diferença estatística significativa entre as concentrações de malondialdeído nas mulheres com e sem papilomavírus humano (p>0,05). Os teores de glutationa total mostraram diferença significativa (p<0,05) somente em Bragança naquelas com (8,20µg/mL) e sem a infecção pelo papilomavírus humano (1,47µg/mL). Conclusão Houve associação significativa da resposta oxidativa do malondialdeído e da glutationa total com a infecção pelo papilomavírus humano, porém não houve diferença quando associada à lesão escamosa, sugerindo que o estresse oxidativo isoladamente não explica a relação com a carcinogênese do colo uterino, que deve ser influenciada ainda por outros fatores.
ABSTRACT Objective To investigate the relation between oxidative stress markers, human papillomavirus infection and cervical cancer precursor lesions. Methods The study comprised women aged 14 to 60 years living in communities located by Amazon rivers in the state of Pará (Itaituba, Limoeiro do Ajuru and Bragança, 126, 68 and 43 women respectively). Papanicolau smears and polymerase chain reaction tests for human papillomavirus DNA detection were performed. Blood samples were collected to test malondialdehyde, total and oxidized glutathione levels. Results Malondialdehyde, total and oxidized glutathione concentrations did not differ significantly (p>0.05) between women with and without low-grade squamous intraepithelial lesions across communities. Malondialdehyde levels (8.02nmols/mL) were almost five times higher in human papillomavirus-positive compared to human papillomavirus-negative women (1.70nmols/mL) living in Itaituba (statistically significant difference; p<0.05). Malondialdehyde levels did not differ significantly (p>0.05) between human papillomavirus-positive and human papillomavirus-negative women living in remaining communities. Significant (p<0.05) differences in total glutathione levels between human papillomavirus-positive and human papillomavirus-negative women (8.20μg/mL and 1.47μg/mL, respectively) were limited to those living in Bragança. Conclusion Malondialdehyde and total glutathione levels were significantly associated with human papillomavirus infection. However, lack of similar associations with squamous lesions suggest oxidative stress alone does not explain correlations with cervical carcinogenesis. Other factors may therefore be involved.
https://doi.org/10.1590/s1679-45082018ao4190
4409 downloads
7.
GSTT1 and GSTM1 null variants in Mestizo and Amerindian populations from northwestern Mexico and a literature review
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Palma-Cano, Luz Elena
; Córdova, Emilio J.
; Orozco, Lorena
; Martínez-Hernández, Angélica
; Cid, Miguel
; Leal-Berumen, Irene
; Licón-Trillo, Angel
; Lechuga-Valles, Ruth
; González-Ponce, Mauricio
; González-Rodríguez, Everardo
; Moreno-Brito, Verónica
.
Abstract The GSTT1 and GSTM1 genes are key molecules in cellular detoxification. Null variants in these genes are associated with increase susceptibility to developing different types of cancers. The aim of this study was to determine the prevalence of GSTT1 and GSTM1 null genotypes in Mestizo and Amerindian individuals from the Northwestern region of Mexico, and to compare them with those reported worldwide. GSTT1 and GSTM1 null variants were genotyped by multiplex PCR in 211 Mestizos and 211 Amerindian individuals. Studies reporting on frequency of GSTT1 and GSTM1 null variants worldwide were identified by a PubMed search and their geographic distribution were analyzed. We found no significant differences in the frequency of the null genotype for GSTT1 and GSM1 genes between Mestizo and Amerindian individuals. Worldwide frequencies of the GSTT1 and GSTM1 null genotypes ranges from 0.10 to 0.51, and from 0.11 to 0.67, respectively. Interestingly, in most countries the frequency of the GSTT1 null genotype is common or frequent (76%), whereas the frequency of the GSMT1 null genotype is very frequent or extremely frequent (86%). Thus, ethnic-dependent differences in the prevalence of GSTT1 and GSTM1 null variants may influence the effect of environmental carcinogens in cancer risk.
https://doi.org/10.1590/1678-4685-gmb-2016-0142
1623 downloads
8.
Metodología del Fitomejoramiento Participativo (FP) en Cuba
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Martínez-Cruz, Michel
; Ríos-Labrada, Humberto
; Ortiz-Pérez, Rodobaldo
; Miranda-Lorigados, Sandra
; Acosta-Roca, Rosa
; Moreno-Moreno, Irene
; Ponce-Brito, Manuel
; Fé-Montenegro, Carlos F. De la
; Martin, Lucy
.
This paper presents a study of the implementation of Participatory Plant Breeding in Cuba, a methodology based on the experience gained by a group of researchers, farmers and technicians. The proposal presents in materials and methods the four fundamental phases of this process: 1) Diagnosis, 2) Collection of plant genetic resources, 3) Establishments of demonstration plots and development of diversity fairs and 4) Peasant experimentation; The structure provides the necessary flexibility that will allow a proper application of the method and follows a logical order of the activities to be executed in a way that facilitates its execution in the different contexts in which it is of interest to apply it. It was obtained as a result that in addition to the four basic stages of Participative Plant breeding, other tools were used that allowed a successful process, they were: action learning according to interests, Farmers’ schools, Innovation festivals, Exchange visits and coexistence, Training of students’ capacities in the local innovation scenarios and creation of local seed banks
En el presente trabajo se presenta un estudio de la implementación del Fitomejoramiento Participativo en Cuba, una metodología sustentada sobre la base de la experiencia adquirida por un grupo de investigadores, agricultores y técnicos. La propuesta presenta en materiales y métodos las cuatro fases fundamentales de este proceso: 1) Diagnóstico, 2) Colección de recursos fitogenéticos, 3) Establecimientos de parcelas demostrativas y desarrollo de ferias de diversidad y 4) Experimentación campesina.La estructura brinda la flexibilidad necesaria que permitirá una adecuada aplicación del método y sigue un orden lógico de las actividades a realizar de forma tal que facilita su ejecución en los diferentes contextos en los que sea de interés aplicarla. Se obtuvo como resultado que además de las cuatro etapas básicas del Fitomejoramiento Participativo se utilizaron otras herramientas que permitieron un proceso exitoso, las mismas fueron: aprendizaje en la acción según intereses, escuelas de agricultores, festivales de innovación, visitas de intercambio y convivencias, formación de capacidades de los estudiantes en los escenarios de la innovación local y creación de bancos locales de semillas
9.
Dra. C. JolanBánóczy (2/3/1929-31/8/2016)
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10.
Conocimiento y creencias de mujeres del estado de Morelos sobre el virus del papiloma humano
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Hernández-Márquez, Clara Irene
; Brito-García, Ivone
; Mendoza-Martínez, Minerva
; Yunes-Diaz, Elsa María
; Hernández-Márquez, Eva
.
11.
Prevalencia de tipos de virus del papiloma humano en hombres que tienen sexo con hombres, en Chihuahua, México
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Hinojos Armendáriz, Denisse A.
; Palma-Cano, Luz E.
; Moreno-Brito, Verónica
; Licón-Trillo, Ángel
; Lora-Orduo, Norma A.
; Carrera-Chávez, Nancy N.
; Santana-Rodríguez, Víctor M.
; Duque-Rodríguez, Jorge
; Leal-Berumen, Irene
.
Abstract: The aim of this work was to determine human papilloma virus (HPV) high and low risk (HR and LR) genotypes prevalence, and other HPV infection associated risk factors, in men who have sex with men (MSM). A cross-sectional study was conducted, to this end, 104 MSM responded a social demographic and sexual behavior questionnaire and consented sampling of anal epithelium for molecular analysis by polymerase chain reaction (PCR), with β-globin primers as internal control, and HPV L1 region primers. Subsequently, typing was performed by sequencing. Prevalence of HPV in MSM was 34%: 10% HR and 24% LR. The most frequent oncogenic HPV types were 16 (20%), 73 (20%) and 45 (20%), and non-oncogenic VPH 11 (36%), 62 (28%) and 6 (12%). MSM less than 30 years old had greater HPV prevalence. Presence of human immunodeficiency virus (HIV) was not significantly associated to HPV infection in the studied population.
Resumen: El objetivo fue determinar la prevalencia de genotipos de alto y bajo riesgo (AR y BR) del virus de papiloma humano (VPH) y otros factores asociados con la infección en hombres que tienen sexo con hombres (HSH). Se realizó un estudio transversal. Para ello, 104 individuos respondieron un cuestionario sociodemográfico y de comportamiento sexual, consintiendo una toma de muestra de epitelio anal para análisis molecular por reacción en cadena de polimerasa (PCR), utilizando oligonucleótidos para β-globina (control interno) y región L1 del VPH. Tipificación mediante secuenciación. La prevalencia de VPH encontrada fue del 34%: 10% AR y 24% BR. Los genotipos oncogénicos más frecuentes fueron VPH 16 (20%), 73 (20%) y 45 (20%), los no oncogénicos fueron el 11 (36%), 62 (28%) y 6 (12%). Se concluye que los HSH menores de 30 años presentaron una mayor prevalencia de VPH. Ser positivo para el virus de inmunodeficiencia humana (VIH) no mostró asociación con VPH en la población estudiada.
https://doi.org/10.15174/au.2016.1156
6697 downloads
12.
Nutritional approach of inpatients with anorexia nervosa
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Marugán de Miguelsanz, José Manuel
; Torres Hinojal, María del Carmen
; Geijo Uribe, María Soraya
; Redondo del Río, María Paz
; Mongil López, Beatriz
; Brito García-Sousa, Inés de
; Caballero Sanz, Irene
; Eiros Bouza, José María
.
Anorexia nervosa (AN) is the most prevalent of eating disorders in children and adolescents, and its treatment is long and complex, involving a multidisciplinary team. Nutritional rehabilitation and restoration of a healthy body weight is one of the central goals in the initial stages of inpatient treatment. However, current recommendations on initial energy requirements for these patients are inconsistent, with a clear lack of controlled studies, available scientific evidence and global consensus on the most effective and safe refeeding practices in hospitalized adolescents with anorexia nervosa (AN). Conservative refeeding recommendations have been classically established in order to prevent the refeeding syndrome. Nevertheless, various works have recently appeared advocating a higher initial caloric intake, without observing more complications or refeeding syndrome, and allowing a shorter average stay. We present our experience in the treatment of restricting AN with a conservative progressive treatment. We have obtained good results with this approach, which was well tolerated by patients, with no observing complications. As a consequence, the medical team could establish a pact about the therapeutic goals with the patients in an easier way.
La anorexia nerviosa (AN) es el trastorno del comportamiento alimentario más prevalente en niños y adolescentes; su tratamiento es largo y complejo, e involucra a múltiples profesionales. La rehabilitación nutricional y la recuperación de un peso corporal normal es uno de los objetivos centrales en las fases iniciales del tratamiento del paciente ingresado. Sin embargo, las recomendaciones actuales sobre los requerimientos energéticos iniciales para estos pacientes son inconsistentes, con una clara ausencia de estudios controlados, evidencia científica disponible y consenso global sobre la forma de realimentación más efectiva y segura en adolescentes ingresados con anorexia nerviosa (AN). Clásicamente se han recomendado una realimentación conservadora para prevenir el síndrome de realimentación. No obstante, han aparecido recientemente varios trabajos recomendado una ingesta calórica inicial más elevada, sin observar más complicaciones ni síndrome de realimentación, y asociadas a estancias medias más cortas. Presentamos aquí nuestra experiencia en el tratamiento de la AN restrictiva con un tratamiento progresivo conservador. Hemos obtenido buenos resultados con este abordaje, bien tolerando por los pacientes, y sin observar complicaciones. Gracias a él, el equipo médico pudo establecer más fácilmente un acuerdo sobre los objetivos terapéuticos con el paciente.
https://doi.org/10.20960/nh.258
1109 downloads
13.
Effectiveness and cost-effectiveness of home palliative care services for adults with advanced illness and their caregivers
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Gomes, Barbara
; Calanzani, Natalia
; Curiale, Vito
; McCrone P., Paul
; Higginson, Irene J.
; Brito, Maja de
.
BACKGROUND: Extensive evidence shows that well over 50% of people prefer to be cared for and to die at home provided circumstances allow choice. Despite best efforts and policies, one-third or less of all deaths take place at home in many countries of the world. OBJECTIVES: 1. to quantify the effect of home palliative care services for adult patients with advanced illness and their family caregivers on patients' odds of dying at home; 2. to examine the clinical effectiveness of home palliative care services on other outcomes for patients and their caregivers such as symptom control, quality of life, caregiver distress and satisfaction with care; 3. to compare the resource use and costs associated with these services; 4. to critically appraise and summarize the current evidence on cost-effectiveness. METHODS: Search methods: We searched 12 electronic databases up to November 2012. We checked the reference lists of all included studies, 49 relevant systematic reviews, four key textbooks and recent conference abstracts. We contacted 17 experts and researchers for unpublished data. Selection criteria: We included randomised controlled trials (RCTs), controlled clinical trials (CCTs), controlled before and after studies (CBAs) and interrupted time series (ITSs) evaluating the impact of home palliative care services on outcomes for adults with advanced illness or their family caregivers, or both. Data collection and analysis: One review author assessed the identified titles and abstracts. Two independent reviewers performed assessment of all potentially relevant studies, data extraction and assessment of methodological quality. We carried out meta-analysis where appropriate and calculated numbers needed to treat to benefit (NNTBs) for the primary outcome (death at home). MAIN RESULTS: We identified 23 studies (16 RCTs, 6 of high quality), including 37,561 participants and 4042 family caregivers, largely with advanced cancer but also congestive heart failure (CHF), chronic obstructive pulmonary disease (COPD), HIV/AIDS and multiple sclerosis (MS), among other conditions. Meta-analysis showed increased odds of dying at home (odds ratio (OR) 2.21, 95% CI 1.31 to 3.71; Z = 2.98, P value = 0.003; Chi2 = 20.57, degrees of freedom (df) = 6, P value = 0.002; I2 = 71%; NNTB 5, 95% CI 3 to 14 (seven trials with 1222 participants, three of high quality)). In addition, narrative synthesis showed evidence of small but statistically significant beneficial effects of home palliative care services compared to usual care on reducing symptom burden for patients (three trials, two of high quality, and one CBA with 2107 participants) and of no effect on caregiver grief (three RCTs, two of high quality, and one CBA with 2113 caregivers). Evidence on cost-effectiveness (six studies) is inconclusive. AUTHORS' CONCLUSIONS: The results provide clear and reliable evidence that home palliative care increases the chance of dying at home and reduces symptom burden in particular for patients with cancer, without impacting on caregiver grief. This justifies providing home palliative care for patients who wish to die at home. More work is needed to study cost-effectiveness especially for people with non-malignant conditions, assessing place of death and appropriate outcomes that are sensitive to change and valid in these populations, and to compare different models of home palliative care, in powered studies.
https://doi.org/10.1590/1516-3180.20161341T2
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14.
Gastrointestinal manifestations in Cowden syndrome: screening recommendations
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León-Brito, Helena
; Oquiñena-Legaz, Susana
; Iglesias-Picazo, Rosa
; Fraile-González, María
; Aresté-Anduaga, Irene
; Aznárez-Barrio, M. Rosario
; Pueyo-Royo, Antonio M.
; Guerra-Lacunza, Ana C.
.
Revista Española de Enfermedades Digestivas
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15.
Normalización de un método inmunoquímico para detectar Papilomavirus humano tipo 16 en lesiones cérvico-uterinas
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Torres López, Griselda
; Soto Brito, Yudira
; Capó de Paz, Virginia
; López Fuentes, Ledy Xiomara
; de la Torre Jiménez, Ana Isabel
; Goicolea Maiza, Adibel
; Limonta Velázquez, Daniel
; Pérez Rodríguez, Anny
; Govín Chávez, Anamays
; Morier Díaz, Luis
; Caballero Lorenzo, Yamira
; Rodríguez Sánchez, Hermis
; Álvarez Goyanes, Rosa Irene
; Calvo Pérez, Adanays
; Escobar Pérez, Xiomara
; Limia León, Celia María
; Kourí Cardellá, Vivian
.
Revista Cubana de Medicina Tropical
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Introduction: Human Papillomavirus (HPV) infection is the necessary condition for the occurernce and development of cervical cancer. The high oncogenic risk genotypes are the responsible for this type of neoplasia and the most frequent is HPV 16 that affects roughly 60 % of cases. Commercial kits for HPV detection are expensive for resource-poor countries, which suggests the search for alternative throguh non-expensive simple protocoles. Objectives: to standardize an immunochemical method for the detection of HPV 16 L1 antigen in cervical samples of patients with squamous intraepithelial lesions and to determine the diagnostic coincidence between the immunochemical method and the real-time polymerase chain reaction to estimate the usefulness of this method for the detection of cervical infection with this viral genotype. Methods: three immunostaining methods (Two-Step Indirect Immunoperoxidase, Labelled Streptavidin-Biotin and Enhanced Polymer) were compared in terms of analytical sensitivity, nonspecific background staining and time of completion, for the detection of protein L1 of HPV-16 in a cell line derived from human cervical carcinoma and clinical samples from uterine cervix. The optimized protocol was applied to 82 cervical samples from women aged 30-59 years with squamous intraepithelial lesions and to 10 samples of sexually active women without previous signals of positive cytology. The presence of type 16 HPV was also detected with the aid of RT-PCR. Results: the Streptavidin-Biotin system was the most sensitive and specific. The diagnostic agreement between the immunochemical method and the real-time polymerase chain reaction reached 98.6 %, sensitivity was 98.57 % and specificity was 91.67 %, with positive and negative predictive values above 90 %. Conclusions: the validity of the immunochemical method as a confirmatory test for infection by HPV-16 has been demonstrated. The normalized immunochemical method proved to be a sensitive, simple, relatively fast method to detect HPV from clinical samples of cervical cells. Furthermore, this method provides information quickly, avoiding the use of invasive methods in patients.
Introducción: la infección por Papilomavirus Humano (PVH) es la condición necesaria para la aparición y desarrollo del cáncer cérvico-uterino. Los genotipos de alto riesgo oncogénico son los causantes de este tipo de neoplasia y dentro de ellos el más frecuente es el PVH 16, que se encuentra aproximadamente en el 60 % de los casos. Los métodos de diagnóstico comerciales resultan costosos para países con escasos recursos económicos, lo que sugiere la búsqueda de alternativas empleando protocolos sencillos y baratos. Objetivos: normalizar un método inmunoquímico para la detección del antígeno L1 de PVH tipo 16 en muestras cérvico-uterinas de pacientes con lesiones intraepiteliales escamosas y determinar la coincidencia entre el método normalizado y la Reacción en Cadena de la Polimerasa en Tiempo Real (RCP-TR), como técnica de referencia, para estimar la utilidad de dicho método en el diagnóstico de la infección por este genotipo viral. Métodos: se compararon tres procedimientos de inmunotinción (Indirecto de inmunoperoxidasa en dos pasos, Estreptavidina-Biotina y Amplificación por polímero) respecto a sensibilidad analítica, tinción inespecífica de fondo y tiempo de terminación, para la detección de la proteína L1 de PVH 16 en líneas celulares derivadas de carcinomas cervicales humanos y en muestras cérvico-uterinas utilizadas como controles. El protocolo normalizado se aplicó a muestras cérvico-uterinas de mujeres entre 30 y 59 años, 82 con lesiones intraepiteliales cervicales y 10 sin antecedentes de alteraciones citológicas, a las que además se les determinó PVH 16 mediante RCP-TR. Resultados: el procedimiento de Estreptavidina-Biotina resultó el más sensible y específico. La coincidencia entre el método inmunoquímico y la RCP-TR fue de un 98,6 %, la sensibilidad fue de un 98,57 % y la especificidad de un 91,67 %, con valores predictivos negativo y positivo por encima del 90 %. Conclusiones: se demostró la validez del método inmunoquímico como prueba confirmatoria de la infección por PVH 16. Dicho método probó ser sensible, sencillo y no requiere de una compleja infraestructura para detectar PVH 16 en muestras cervicales. Además, esta técnica permite obtener información rápidamente y evita el uso de métodos invasivos.
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