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Abstract Objectives: To review and provide evidence-based recommendations for the diagnosis and treatment of otosclerosis. Methods: Task force members were educated on knowledge synthesis methods, including electronic database search, review and selection of relevant citations, and critical appraisal of selected studies. Articles written in English or Portuguese on otosclerosis were eligible for inclusion. The American College of Physicians’ guideline grading system and the American Thyroid Association’s guideline criteria were used for critical appraisal of evidence and recommendations for therapeutic interventions. Results: The topics were divided into 2 parts: 1) Diagnosis – audiologic and radiologic; 2) Treatment – hearing AIDS, pharmacological therapy, stapes surgery, and implantable devices - bone-anchored devices, active middle ear implants, and Cochlear Implants (CI). Conclusions: The pathophysiology of otosclerosis has not yet been fully elucidated, but environmental factors and unidentified genes are likely to play a significant role in it. Women with otosclerosis are not at increased risk of worsening clinical condition due to the use of contraceptives or during pregnancy. Drug treatment has shown little benefit. If the patient does not want to undergo stapedotomy, the use of hearing aids is well indicated. Implantable systems should be indicated only in rare cases, and the CI should be indicated in cases of profound deafness.

https://doi.org/10.1016/j.bjorl.2023.101303

Spray chilling on carcass weight loss, and physicochemical and microbiological quality of beef cuts during storage
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Prado, Cristiano Sales

; Lage, Moacir Evandro

; Souza, Maria Izabel Amaral

; Duarte, Francine Oliveira Souza

; Gebara, Clarice

; Nicolau, Edmar Soares

; Nunes, Iolanda Aparecida

; Oliveira, Antônio Nonato de

; Minafra-Rezende, Cintia Silva

Ciência Rural

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2022, Volume 52 N. 4 elocation e20210395

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: Diferentes tratamentos de resfriamento são utilizados antes da estocagem das carnes. O efeito da aspersão de carcaças (SC) na qualidade da carne parece variar. Neste estudo, investigou-se os efeitos da aspersão de carcaças bovinas na perda de peso e na qualidade da carne durante subsequente estocagem. O programa de aspersão testado foi de um tempo total de 2 h, com uma aspersão inicial de 180 s, seguida por ciclos de aspersão de 60 s em intervalos de 540 s. Os cortes comerciais desossados “Peixinho” (IMPS 116B) foram embalados a vácuo e estocados por até 60 dias. Foram avaliadas as perdas por exsudação e cozimento, força de cisalhamento por Warner-Bratzler, cor da carne (CIE L*, a*, b*) e qualidade microbiológica. SC reduziu a perda de peso da carcaça (P < 0,001) em comparação com o resfriamento convencional. No entanto, o tempo de estocagem influenciou a perda por exsudação, por cozimento e força de cisalhamento. Os valores de CIE a* e b* aumentaram (P < 0,05) após 30 dias de maturação em ambos os tratamentos de resfriamento. O crescimento pronunciado de psicrotróficos foi observado durante a estocagem em ambos os tratamentos. Em conclusão, o SC pode ser usado para reduzir as perdas econômicas associadas ao resfriamento da carne, sem afetar os atributos de qualidade da carne.

ABSTRACT: Different chilling treatments are used before meat storage. The effect of spray chilling (SC) on meat quality appears to vary. Here, we investigated the effects of SC on beef carcass weight loss and meat quality during subsequent storage. The 2-h SC program tested involved 180-s initial spraying, followed by 60-s spray cycles at 540-s intervals. Deboned chuck tender (IMPS 116B) beef cuts were vacuum-packaged and stored for up to 60 d. Purge and cooking losses, Warner-Bratzler shear force, meat colour [CIE L*, a*, b*], and microbiological quality were evaluated. SC reduced carcass weight loss (P<0.001) compared with conventional chilling. However, storage time affected the purge and cooking losses, and Warner-Bratzler shear force. CIE a* and b* values increased (P<0.05) after 30-d aging in both chilling treatments. Pronounced psychrotrophic growth was observed during storage after both treatments. In conclusion, SC can be used to reduce the economic losses associated with meat chilling, without affecting meat quality attributes.

https://doi.org/10.1590/0103-8478cr20210395 88 downloads

Chemical profile colostrum, quality refrigerated and frozen milk of santa inês sheep
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Silva, João Antônio Gonçalves e

; Silveira, Mariana da Mata

; Leão, Paulo Victor Toledo

; Cunha, João Vitor Teixeira da

; Dias, Mariana Borges de Castro

; Lima, Maria Siqueira de

; Carmo, Ruthele Moraes do

; Leão, Karen Martins

; Bento, Elis Aparecido

; Nicolau, Edmar Soares

; Silva, Marco Antônio Pereira da

Ciência Rural

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2022, Volume 52 N. 8 elocation e20200986

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: Avaliou-se a composição química do colostro de ovinos Santa Inês, leite refrigerado (zero a 240 horas) e leite congelado por até 70 dias. Os resultados de composição química (gordura, proteína, caseína, lactose, extrato seco total e desengordurado) e contagem de células somáticas do colostro (CCS) foram apresentados de forma descritiva. Os resultados da composição química, CCS e da contagem bacteriana total (CBT) do leite refrigerado e congelado foram avaliados em delineamento inteiramente casualizado. As repetições foram os dias de coleta do leite e os tratamentos os tempos em que o leite foi refrigerado e congelado. A comparação das médias de qualidade do leite resfriado e congelado foi realizada pelo teste de Tukey, com probabilidade de 5,0 %. O colostro de ovinos Santa Inês apresentou alto teor de proteína e gordura, demonstrando ser uma grande fonte de nutrientes para a nutrição de cordeiros. O leite de ovelha Santa Inês pode ser armazenado sob refrigeração por até 240 horas sem alterações da composição química. O leite congelado de ovelhas Santa Inês pode ser armazenado por até 70 dias, contudo ocorre alteração da composição química, principalmente nos teores de gordura. A refrigeração e o congelamento são alternativas que agregam valor ao leite de ovelhas Santa Inês, porém, mais estudos com estes métodos de preservação, são necessários para maior garantia de qualidade.

ABSTRACT: The chemical composition of Santa Inês sheep colostrum was evaluated, as well as chilled milk (zero to 240 hours) and frozen milk for up to 70 days. Results of chemical composition (fat, protein, casein, lactose, total and degreased dry extract) and colostrum somatic cell count (SCC) were presented descriptively. The results of chemical composition and SCC and total bacterial count (TBC) of chilled and frozen milk were evaluated in a completely randomized design, the repetition of milk collection days and the treatments of the times when the milk was chilled and frozen. The comparison of the quality averages of chilled and frozen milk was performed by Tukey test, with a probability of 5.0 %. Santa Inês sheep colostrum showed high protein and fat content, demonstrating a high source of nutrients for lamb nutrition. Santa Inês sheep’s milk can be stored for up to 240 hours without changes in chemical quality. Frozen milk from Santa Inês ewes for up to 70 days minus fat content; however, this form of milk preservation is viable. Refrigeration and freezing are alternatives that add value to the milk of Santa Inês ewes, but studies with previous preservation methods are necessary for greater quality assurance.

https://doi.org/10.1590/0103-8478cr20200986

In vitro potency of amikacin against carbapenem-resistant Pseudomonas aeruginosa: A target for nebulization strategy?
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Cuba, Gabriel T.

; Santos, Paulo H.D.

; Pignatari, Antonio C.C.

; Nicolau, David P.

; Kiffer, Carlos R.V.

Brazilian Journal of Infectious Diseases

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2022, Volume 26 N. 2 elocation 102355

Abstract: En | Text: En | PDF: En

https://doi.org/10.1016/j.bjid.2022.102355

Effect of milk protein concentrate supplementation on body composition and biochemical markers during a resistance training program
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SANTOS, Givanildo de Oliveira

; COSTA E SILVA, Gabriel

; SOUZA, Raquel Borges de

; MEDEIROS, Jéssica Silva

; BRITO, Igor Souza de

; CARDOSO NETO, Sebastião Pereira

; LEÃO, Paulo Victor Toledo

; NICOLAU, Edmar Soares

; CAPPATO, Leandro Pereira

; FAVARETO, Rogério

; SILVA, Marco Antônio Pereira da

Food Science and Technology

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2022, Volume 42 elocation e67222

Abstract: En | Text: En | PDF: En

Abstract This study aimed to formulate a milk protein concentrate (MPC) and evaluate the effect of this MPC supplementation on body composition, lipid profile, and product acceptability in resistance training (RT) practitioners. The physical, chemical and sensory properties were then analyzed. To evaluate the effect of the MPC supplementation on resistance training practitioners, 30 males were divided into two groups: a control group and an intervention group. Then the participants in the intervention group were supplemented with 500 mL of the MPC (250 mL pre-RT and 250 mL post-RT). Body composition (weight, height, and skinfolds) and biochemical markers (cholesterol and triglycerides) were measured at baseline and at 30, 60, and 90 days after treatment. Body composition results showed that the MPC supplementation during a RT program significantly (p < 0.05) reduced body fat percentage and fat mass, and increased lean mass in RT practitioners. Characterization of the MPC revealed low fat (3.32 ± 0.08%) and carbohydrates (4.58 ± 0.59%), and high protein (18.51 ± 0.51%) concentrations. Additionally, the product showed satisfactory acceptability index (> 71%). Thus, the MPC supplementation contributed to reduction of fat percentage, fat mass, and increase of lean mass in RT practitioners, without lipid profile alterations.

https://doi.org/10.1590/fst.67222

UFSMFW 2202 - Early black oat cultivar for ground cover
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Marchioro, Volmir Sergio

; Meira, Daniela

; Klein, Luís Antônio

; Meier, Carine

; Souza, Velci Queiróz de

; Follmann, Diego Nicolau

; Carvalho, Ivan Ricardo Ricardo

; Caron, Braulio Otomar

; Schimidt, Denise

; Nardino, Maicon

; Olivoto, Tiago

Crop Breeding and Applied Biotechnology

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2022, Volume 22 N. 4 elocation e41572246

Abstract: En | Text: En | PDF: En

Abstract UFSMFW 2202 is an early black oat cultivar with high dry matter and grain yield potential. When used in rotation systems, the early cycle has the immediate advantage of allowing anticipated sowing of subsequent crop. Initially, the cultivar is recommended for the North and Northwest of Rio Grande do Sul.

https://doi.org/10.1590/1984-70332022v22n4c41

UFSMFW 2101 - very early black oat cultivar with high yield potential
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Marchioro, Volmir Sergio

; Meira, Daniela

; Klein, Luís Antônio

; Meier, Carine

; Souza, Velci Queiróz de

; Follmann, Diego Nicolau

; Carvalho, Ivan Ricardo

; Caron, Braulio Otomar

; Schimidt, Denise

; Nardino, Maicon

; Olivoto, Tiago

Crop Breeding and Applied Biotechnology

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2022, Volume 22 N. 4 elocation e440222414

Abstract: En | Text: En | PDF: En

Abstract The black oat cultivar UFSMFW 2101, recommended for Northwest of the state of Rio Grande do Sul, is very early and can produce high dry matter and grain yields. In rotation systems, an immediate advantage is the very early cycle, with the possibility of anticipated sowing of the subsequent crop.

https://doi.org/10.1590/1984-70332022v22n4c49

Posicionamento sobre Hipertensão Arterial e Espiritualidade – 2021
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Nobre, Fernando

; Esporcatte, Roberto

; Brandão, Andréa Araujo

; Avezum Jr., Álvaro

; Feitosa, Audes Diógenes Magalhães

; Amodeo, Celso

; Barbosa, Eduardo Costa Duarte

; Moriguchi, Emilio Hideyuki

; Lucchese, Fernando Antônio

; Griz, Hermilo Borba

; Nicolau, José Carlos

; Magalhães, Lucélia Batista Neves Cunha

; Mota-Gomes, Marco Antônio

; Borba, Mario Henrique Elesbão de

; Pontes, Mauro Ricardo Nunes

; Jardim, Paulo César Brandão Veiga

; Spineti, Pedro Pimenta de Mello

; Mourilhe-Rocha, Ricardo

; Miranda, Roberto Dischinger

; Couceiro, Sérgio Lívio Menezes

; Barroso, Weimar Kunz Sebba

Arquivos Brasileiros de Cardiologia

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sep 2021, Volume 117 N. 3 Pages 599 - 613

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.36660/abc.20210723 165 downloads

Efficiency of photosynthetically active radiation interception associated with morphological traits in canola cultivars
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Nicolau Follmann, Diego

; Henrique Nied, Astor

; Rocha, Leidiana da

; Colet, Fabiano

; Tascheto Bolzan, Felipe

; Wartha, Cleiton Antonio

; Cargnelutti Filho, Alberto

; Newton Martin, Thomas

Idesia (Arica)

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jun 2021, Volume 39 N. 2 Pages 101 - 110

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT The interception of photosynthetically active radiation (PAR) is a key factor for biological productivity, and its magnitude depends on the availability of solar radiation, the stage of the plant development cycle, and the arrangement of plant structures. Given the arrangement of the vegetative and reproductive structures in different portions in the canola canopy, the objetive of the study was to morphologically characterize canola cultivars and establish relationships with the stratification of the efficiency of PAR intercep tion. Eight canola cultivars were evaluated in regards to PAR and plant morphological traits. Following the analysis of variance, treatment means were grouped, and the phenotypic correlation matrix between the traits was determined. We observed a strong relationship between the PAR interception efficiency of vegetative and reproductive structures with morphological traits. Plants with a higher number of branches have more siliques and greater efficiency of PAR interception, mainly through the reproductive structures. The characterization of morphological differences between canola cultivars in the PAR interception efficiency should be performed by measures stratified by vegetative and reproductive structures.

RESUMEN La interceptación de radiación fotosintéticamente activa (ARF) es importante para la productividad biológica y su magnitud depende de la disponibilidad de radiación solar, la etapa del ciclo de desarrollo de la planta y la disposición de las estructuras de la planta. Dada la disposición de las estructuras vegetativas y reproductivas de la canola en diferentes porciones del perfil del dosel de las plantas, el objetivo del trabajo fue buscar la caracterización morfológica de cultivares de canola y establecer relaciones con la estratificación de la eficiencia de interceptación de la radiación fotosintéticamente activa. Se evaluaron ocho cultivares de canola, se midió la ARF y se evaluaron los caracteres morfológicos de la planta. Se realizaron análisis de varianza, agrupamiento de medias y se determinó la matriz de correlación fenotípica entre los caracteres. Se observó una alta relación entre la eficiencia de interceptación de la RFA de estructuras vegetativas y reproductivas con caracteres morfológicos. Las plantas con mayor número de ramas tienen más sílice y mayor eficiencia en la interceptación de la radiación fotosintéticamente activa, principalmente debido a las estructuras reproductivas. La caracterización de las diferencias morfológicas entre cultivares de canola en la eficiencia de interceptación de la RFA debe realizarse mediante medidas estratificadas por estructuras vegetativas y reproductivas.

71 downloads

10.

Homage to Professor Osvaldo Malafaia. Editor-in-Chief of the Brazilian Archives of Digestive Surgery, ABCD from 2001 to 2021.
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CAMPOS, Antonio Carlos Ligocki

; CZECZKO, Nicolau Gregori

ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo)

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2021, Volume 34 N. 3 elocation e1611

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.1590/0102-672020210002e1611

11.

TESTE RÁPIDO MOLECULAR PARA TUBERCULOSE: CUSTO E CONTRIBUIÇÕES
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Lopes, Larissa Nicolau

; Cardoso, Lilian Lessa

; Silva, Marcelle Saldanha da

; Tonin, Edvaldo

; Zilly, Adriana

; Silva Sobrinho, Reinaldo Antonio

Revista Baiana de Enfermagem

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2020, Volume 34 elocation e34803

Abstract: En Es Pt | Text: En Es Pt | PDF: En | PDF: Es | PDF: Pt

Objective: to identify the cost of the Gene Xpert MTB/Rif® technology and analyze its contribution to the rapid diagnosis of tuberculosis. Method: quantitative and retrospective study, carried out in the period from 2014 to 2016. Data search was performed on the Information System of Disease Notification and on the Laboratory Environment Manager. The data were analyzed based on the techniques of descriptive statistics through distribution of absolute and relative frequency. Results: 196 cases were studied, and the average time to perform the test for diagnosis of tuberculosis through Gene Xpert MTB/Rif® was two days, with a cost of 35.20R$ per test performed. Conclusion: the costs of Gene Technology Xpert MTB/Rif® are relatively higher than that of sputum smear microscopy, but have great advantages in time to release the test result and higher sensitivity and specificity offered by the rapid molecular assay.

Objetivo: identificar el costo de la tecnología Gene Xpert MTB/Rif® y analizar su contribución para el diagnóstico rápido de la tuberculosis. Método: estudio cuantitativo, retrospectivo, realizado en el período de 2014 a 2016. Se realizó la búsqueda de datos en el Sistema de Información de Notificación de Enfermedades y en el Supervisor del Entorno de Laboratorio. Los datos fueron analizados con base en las técnicas de la estadística descriptiva por medio de distribución de frecuencias absolutas y relativas. Resultados: se estudiaron 196 casos y el promedio de tiempo para realizar el examen para el diagnóstico de la tuberculosis por medio del Gene Xpert MTB/Rif® fue de dos días, con un costo de 35.20R$ por cada examen realizado. Conclusión: los costos de la tecnología Gene Xpert MTB/Rif® son relativamente más altos que los de la baciloscopía, pero tienen grandes ventajas en el tiempo para la publicación de los resultados del examen y mayor sensibilidad y especificidad ofrecidos por prueba rápida molecular.

Objetivo: identificar o custo da tecnologia Gene Xpert MTB/Rif® e analisar sua contribuição para o diagnóstico rápido da tuberculose. Método: estudo quantitativo e retrospectivo realizado no período de 2014 a 2016. A busca de dados foi realizada no Sistema de Informação de Agravo de Notificação e no Gerenciador de Ambiente Laboratorial. Os dados foram analisados com base nas técnicas de estatística descritiva por meio da distribuição de frequência absoluta e relativa. Resultados: foram estudados 196 casos e a média de tempo para a realização do exame para diagnóstico da tuberculose por meio do Gene Xpert MTB/Rif® foi de dois dias, com custo de R$ 35,20 por exame realizado. Conclusão: os custos da tecnologia Gene Xpert MTB/Rif® são relativamente superiores ao da baciloscopia de escarro, porém têm-se grandes vantagens quanto ao tempo para a liberação do resultado do exame e maior sensibilidade e especificidade oferecida pelo teste rápido molecular.

https://doi.org/10.18471/rbe.v34.34803 72 downloads

12.

Effect of low intensity photobiomodulation associated with norbixin-based poly (hydroxybutyrate) membrane on post-tenotomy tendon repair. In vivo study
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Nascimento, Lízia Daniela e Silva

; Nicolau, Renata Amadei

; Maia Filho, Antônio Luiz Martins

; Nascimento, Kárita Francisca e Silva

; Santos, José Zilton Lima Verde

; Sousa, Rayssilane Cardoso de

; Carvalho, Luiz Fernando Meneses

; Viana, Vicente Galber Freitas

Acta Cirúrgica Brasileira

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2020, Volume 35 N. 3 elocation e202000303

Abstract: En | Text: En | PDF: En

Abstract Purpose: To evaluate the in vivo response of photobiomodulation therapy associated with norbixin-based poly(hydroxybutyrate) membrane (PHB) in tenotomized calcaneal tendon. Methods: Thirty rats were randomly allocated to six groups (n=5 each): LED groups (L1, L2 and L3) and membrane + LED groups (ML1, ML2 and ML3). The right calcaneal tendons of all animals were sectioned transversely and were irradiated with LED daily, one hour after surgery every 24 hours, until the day of euthanasia. At the end of the experiments the tendons were removed for histological analysis. Results: The histological analysis showed a significant reduction in inflammatory cells in the ML1, ML2 and ML3 groups (p=0.0056, p=0.0018 and p<0.0001, respectively) compared to those in the LED group. There was greater proliferation of fibroblasts in the ML1 (p<0.0001) and L3 (p<0.0001) groups. A higher concentration of type I collagen was also observed in the ML1 group (p=0.0043) replacing type III collagen. Conclusion: Photobiomodulation in association with norbixin-based PHB membrane led to control of the inflammatory process. However, it did not favor fibroblast proliferation and did not optimize type I collagen formation in the expected stage of the repair process.

https://doi.org/10.1590/s0102-865020200030000003 772 downloads

13.

Role of the three-dimensional printing technology in complex laparoscopic renal surgery: a renal tumor in a horseshoe kidney
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Mercader, Clàudia

; Vilaseca, Antoni

; Moreno, Javier Luis

; López, Antonio

; Sebastià, Maria Carmen

; Nicolau, Carles

; Ribal, Maria José

; Peri, Luís

; Costa, Mertixell

; Alcaraz, Antonio

International braz j urol

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nov 2019, Volume 45 N. 6 Pages 1129 - 1135

Abstract: En | Text: En | PDF: En

ABSTRACT Purpose: To report our initial experience using a patient-specific 3D-printed renal tumor model for the surgical planning of a complex heminephrectomy in a horseshoe kidney. Materials and Methods: We selected a clinical case for a complex laparoscopic surgery consisting in a 53 year-old male presenting a local recurrence of a renal tumor in a horseshoe kidney with aberrant vascularisation previously treated with a laparoscopic partial nephrectomy. He is now proposed for a laparoscopic left heminephrectomy. Along with conventional imaging, a real-size 3D-printed renal model was used to plan de surgical approach. The perioperative experience of the surgical team was recorded. Results: The surgical team found the patient-specific 3D printed model useful for a better understanding of the anatomy and an easier surgical planning. Conclusion: The use of patient-specific 3D-printed renal models seem to be helpful for the surgical planning in complex renal tumors.

https://doi.org/10.1590/s1677-5538.ibju.2019.0085 1496 downloads

14.

Effect of norbixin-based poly(hydroxybutyrate) membranes on the tendon repair process after tenotomy in rats
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Nascimento, Lízia Daniela e Silva

; Nicolau, Renata Amadei

; Maia Filho, Antônio Luiz Martins

; Santos, José Zilton Lima Verde

; Fonseca, Khetyma Moreira

; Ferreira, Danniel Cabral Leão

; Sousa, Rayssilane Cardoso de

; Viana, Vicente Galber Freitas

; Carvalho, Luiz Fernando Meneses

; Figueredo-Silva, José

Acta Cirúrgica Brasileira

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nov 2019, Volume 34 N. 11 elocation e201901101

Abstract: En | Text: En | PDF: En

Abstract Purpose: To determine the efficacy of norbixin-based poly(hydroxybutyrate) (PHB) membranes for Achilles tendon repair. Methods: Thirty rats were submitted to total tenotomy surgery of the right Achilles tendon and divided into two groups (control and membrane; n = 15 each), which were further subdivided into three subgroups (days 7, 14, and 21; n = 5 each). Samples were analyzed histologically. Results: Histological analysis showed a significant reduction in inflammatory infiltrates on days 7, 14 (p < 0.0001 for both), and 21 (p = 0.0004) in the membrane group compared to that in the control group. There was also a significant decrease in the number of fibroblasts in the control group on days 7, 14 (p < 0.0001), and 21 (p = 0.0032). Further, an increase in type I collagen deposition was observed in the membrane group compared to that in the control group on days 7 (p = 0.0133) and 14 (p = 0.0107). Conclusion: Treatment with norbixin-based PHB membranes reduces the inflammatory response, increases fibroblast proliferation, and improves collagen production in the tendon repair region, especially between days 7 and 14.

https://doi.org/10.1590/s0102-865020190110000001 809 downloads

15.

Agronomic performance and genetic dissimilarity of second-harvest soybean cultivars using REML/BLUP and Gower’s algorithm
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Follmann, Diego Nicolau

; Souza, Velci Queiróz de

; Cargnelutti Filho, Alberto

; Demari, Gustavo Henrique

; Nardino, Maicon

; Olivoto, Tiago

; Carvalho, Ivan Ricardo

; Silva, Antonio David Bortoluzzi

; Meira, Daniela

; Meier, Carine

Bragantia

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jun 2019, Volume 78 N. 2 Pages 197 - 207

Abstract: En | Text: En | PDF: En

ABSTRACT The cultivation of second-harvest with soybean crop after first-harvest with maize crop has become an alternative to aggregate income to farmers in the South region of Brazil. However, there is little information about this cropping system in this region. The aims of this study were to: (i) evaluate the agronomic performance of soybean (Glycine max L.) cultivars growing in second-harvest during the summer; and (ii) evaluate the genetic divergence of the cultivars based on qualitative and quantitative traits. To do this, 18 soybean cultivars were evaluated in three field trials, sown during January in the northwestern region of Rio Grande do Sul state, Brazil. In each experiment, a randomized block design with four replicates was used. Five quantitative traits (representing the agronomic performance of the cultivars) and 12 qualitative traits (morphological descriptors) were assessed aiming at studying the genetic divergence. Variance components and genetic parameters were estimated using mixed models and BLUPs for genotypes were estimated for each quantitative trait. The cultivars FPS Iguaçu RR and BMX Turbo RR have good agronomic performance and are, based on quantitative and qualitative traits, genetically distant. These cultivars have shown agronomic features that allow their cultivation in the second-harvest in the northwestern of Rio Grande do Sul in addition to be potential genitors for future soybean breeding programs.

https://doi.org/10.1590/1678-4499.20180194 954 downloads

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